-
3 Cool Materials That Mimic Shark Skin
Sharks are built to be the perfect killers, swimmers, and survivors. And we lowly humans are finally realizing the genius of their design. And their skin is particularly amazing. Anthony shows us why it's one of nature's engineering marvels.
Read More:
Biomimicking Sharks
http://biomimicryinstitute.org/home-page-content/home-page-content/biomimicking-sharks.html
"Sharks may conjure up notions of
-
3D Shark - Awesome Graphics - Wow!
How do sharks work? This is a very cool 3D computer graphics presentation of the anatomy & science of sharks. This fabulous computer demonstration shows how sharks work. How their bodies operate in the underwater environment. All their super charged senses are unique to them.
This video explains dermal denticles (placoid scales), and how they are tough scales that cover the skin of elasmobranchs
-
Shark Skin Is Actually Teeth!
Shark's skin is a suit of armor made of teeth that helps them swim faster and sneak up on prey while hunting using stealth. They're called dermal denticles and are very similar to the make-up of human teeth.
Did you know that a shark’s skin is very similar to a human tooth?
There are 2 kinds of fish skeletally speaking. There’s those with skeletons made of bone and those with skeletons made of
-
BIO190 Session #09 Fall 2014
Introduction to Marine Life with Kera Mathes
produced in association with the Aquarium of the Pacific
Topic: Sharks
www.youtube.com/csuDHTV
Introduction Guest: Nicky Leier
https://youtu.be/SwipxiSPCEI?t=3m9s
Question: What is a fresh water saw fish?
https://youtu.be/SwipxiSPCEI?t=6m45s
What is a Shark:
https://youtu.be/SwipxiSPCEI?t=10m2s
Cartilaginous Fish:
https://youtu.be/SwipxiSPCEI?t=10m2
-
BIO190 Session #9 Fall 2015
Introduction to Marine Life with Kera Mathes
Produced in association with the Aquarium of the Pacific
www.youtube.com/csuDHTV (Please Subscribe)
Sharks
https://youtu.be/JM8__ipJhDg?t=7m42s
A Shark is a Cartilaginous Fish
https://youtu.be/JM8__ipJhDg?t=7m54s
Spiracles
https://youtu.be/JM8__ipJhDg?t=10m3s
Dermal Denticles
https://youtu.be/JM8__ipJhDg?t=16m24s
Shark Senses (hearing, olfaction
-
What marine animal is this?
What is this...
It's a Wobbegong shark. Fish are covered with scales, but shark skin (and ray skin) is covered with dermal denticles. Dermal denticles are like small teeth: they have a soft centre supplied with blood and nerves, and are coated in a hard, enamel-like material. The denticles don't grow in size as the animal does (unlike fish scales), instead more denticles are added. The denticles f
-
Great White Shark - Super Predator Instinct / Documentary (English/HD)
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimo
-
Stingray giving birth
Stingray giving birth.
Stingray giving birth at mississippi state on the boat.
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasy
-
Speedo Fastskin FS II Brief | SwimOutlet.com
Get yours at SwimOutlet.com:
http://www.swimoutlet.com/product_p/2462.htm
The Speedo™ Fastskin™ is one of the most technically advanced briefs. The unique fabric mimics a shark's skin with dermal denticles-tiny hydrofoils with v-shaped ridges that decrease drag and turbulence around the body. Muscle compression components reduce muscle vibration. Seaming improves muscle coordination.
• Brief st
-
Shark sighted at the Andamans!
Sharks (superorder Selachimorpha) are highly aggressive carnivorous fish with razor sharp rows of teeth, with a full cartilaginous skeleton and highly streamlined body. They breathe underwater through five to seven gill slits. They have a covering of dermal denticles that protects their skin from damage and parasites, improves their fluid dynamics helping them to move faster and quicker.
There
-
The Deadliest Shark - Shark Documentary National Geographic HD 2015
The Deadliest Shark video. Shark Documentary National Geographic HD 2015. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been use
-
New Shark Species Can Light Up The Sea
New Shark Species Can Light Up The Sea
World | Indo-Asian News Service | Updated: December 30, 2015 15:28 IST
EMAIL
PRINT
COMMENTS
New Shark Species Can Light Up The Sea
The newly identified shark also has a different number and distribution of photophores, which are the tiny cup-shaped organs that give lanternsharks the ability to glow. (Representational Image)
NEW YORK: Researchers have disco
-
shark vs octopus Brief review & best attack HD
shark vs octopus Brief review & best attacks HD
shark vs octopus Brief review & best attacks HD
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "s
-
5 TON SHARK CATCH - FAKE OR REAL?
A friend of mine sent me a video the other day. It claims to show a 5 ton shark that was caught somewhere in Asia. It was pretty grainy and it was hard to tell what I was looking at... but it did resemble a shark...
But C'mon... Five tons? How can that be. What I want to know is this, fake or real?
I did some checking around and found very little about a 5 ton shark being caught... but I did r
-
Biggest Sharks In The World - los tiburones mas grandes del mundo!
Some of the biggest sharks in the world!
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the s
-
Paroon shark vs Piranha
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimo
-
Shark toy - is that toy fish real
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. There are more than 465 known species of sharks living in our oceans today. Sharks are an apex predator at or near the top of their marine food chains, and they regulate the populations of species below them. Research has shown t
-
Random Shark
Random Shark
Shark
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Shark
For other uses, see Shark (disambiguation).
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sis
-
Underwater UFO & Great White Shark vs Giant Whale Next Gen GTA 5
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimo
-
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays)
-
shark attack 2 men full HD
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimo
-
News of Shark/Bangladesh sea
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachim
-
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu adalah sekelompok (superordo Selachimorpha) ikan dengan kerangka tulang rawan yang lengkap [1] dan tubuh yang ramping. Mereka bernapas dengan menggunakan lima liang insang (kadang-kadang enam atau tujuh, tergantung pada spesiesnya) di samping, atau dimulai sedikit di belakang, kepalanya. Hiu mempunyai tubuh yang dilapisi kulit dermal denticles untuk m
3 Cool Materials That Mimic Shark Skin
Sharks are built to be the perfect killers, swimmers, and survivors. And we lowly humans are finally realizing the genius of their design. And their skin is par...
Sharks are built to be the perfect killers, swimmers, and survivors. And we lowly humans are finally realizing the genius of their design. And their skin is particularly amazing. Anthony shows us why it's one of nature's engineering marvels.
Read More:
Biomimicking Sharks
http://biomimicryinstitute.org/home-page-content/home-page-content/biomimicking-sharks.html
"Sharks may conjure up notions of great and fearsome predators, but one day, people may think of sharks equally as great teachers."
Dermal Denticle
http://marinelife.about.com/od/glossary/g/dermaldenticle.htm
"Dermal denticles (placoid scales) are tough "scales" that cover the skin of elasmobranchs (sharks and rays)."
Biomimicry Shark Denticles
http://ocean.si.edu/ocean-photos/biomimicry-shark-denticles
"Great White Sharks are stealthy hunters and the secret is in their skin. Shark skin is covered by tiny flat V-shaped scales, called dermal denticals, that are more like teeth than fish scales."
A Material Based on Sharkskin Stops Bacterial Breakouts
http://www.popsci.com/science/article/2009-10/saving-skin
"Similar to the texture of sharkskin, Sharklet's three-micrometer-wide diamond-shaped pattern prevents bacteria from taking root."
Sharklet Technologies
http://sharklet.com/technology/
Like a shark in the water
http://www.lufthansa-technik.com/multifunctional-coating
"Innovative lacquer system to reduce drag."
Watch More:
Shark Attack 101
http://www.youtube.com/watch?v=_sDmYWYWeyc
Shark Myths Busted
http://www.youtube.com/watch?v=d8G47gJh1s0
More Shark Week Videos
http://www.youtube.com/playlist?annotation_id=annotation_3603099901&feature;=iv&list;=PL2570D0B2559D3EC6&src;_vid=kVWe-5szhM0
____________________
DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily.
Watch More DNews on TestTube http://testtube.com/dnews
Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel
DNews on Twitter http://twitter.com/dnews
Anthony Carboni on Twitter http://twitter.com/acarboni
Laci Green on Twitter http://twitter.com/gogreen18
Trace Dominguez on Twitter http://twitter.com/trace501
DNews on Facebook http://facebook.com/dnews
DNews on Google+ http://gplus.to/dnews
Discovery News http://discoverynews.com
wn.com/3 Cool Materials That Mimic Shark Skin
Sharks are built to be the perfect killers, swimmers, and survivors. And we lowly humans are finally realizing the genius of their design. And their skin is particularly amazing. Anthony shows us why it's one of nature's engineering marvels.
Read More:
Biomimicking Sharks
http://biomimicryinstitute.org/home-page-content/home-page-content/biomimicking-sharks.html
"Sharks may conjure up notions of great and fearsome predators, but one day, people may think of sharks equally as great teachers."
Dermal Denticle
http://marinelife.about.com/od/glossary/g/dermaldenticle.htm
"Dermal denticles (placoid scales) are tough "scales" that cover the skin of elasmobranchs (sharks and rays)."
Biomimicry Shark Denticles
http://ocean.si.edu/ocean-photos/biomimicry-shark-denticles
"Great White Sharks are stealthy hunters and the secret is in their skin. Shark skin is covered by tiny flat V-shaped scales, called dermal denticals, that are more like teeth than fish scales."
A Material Based on Sharkskin Stops Bacterial Breakouts
http://www.popsci.com/science/article/2009-10/saving-skin
"Similar to the texture of sharkskin, Sharklet's three-micrometer-wide diamond-shaped pattern prevents bacteria from taking root."
Sharklet Technologies
http://sharklet.com/technology/
Like a shark in the water
http://www.lufthansa-technik.com/multifunctional-coating
"Innovative lacquer system to reduce drag."
Watch More:
Shark Attack 101
http://www.youtube.com/watch?v=_sDmYWYWeyc
Shark Myths Busted
http://www.youtube.com/watch?v=d8G47gJh1s0
More Shark Week Videos
http://www.youtube.com/playlist?annotation_id=annotation_3603099901&feature;=iv&list;=PL2570D0B2559D3EC6&src;_vid=kVWe-5szhM0
____________________
DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily.
Watch More DNews on TestTube http://testtube.com/dnews
Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel
DNews on Twitter http://twitter.com/dnews
Anthony Carboni on Twitter http://twitter.com/acarboni
Laci Green on Twitter http://twitter.com/gogreen18
Trace Dominguez on Twitter http://twitter.com/trace501
DNews on Facebook http://facebook.com/dnews
DNews on Google+ http://gplus.to/dnews
Discovery News http://discoverynews.com
- published: 06 Aug 2013
- views: 43048
3D Shark - Awesome Graphics - Wow!
How do sharks work? This is a very cool 3D computer graphics presentation of the anatomy & science of sharks. This fabulous computer demonstration shows how sha...
How do sharks work? This is a very cool 3D computer graphics presentation of the anatomy & science of sharks. This fabulous computer demonstration shows how sharks work. How their bodies operate in the underwater environment. All their super charged senses are unique to them.
This video explains dermal denticles (placoid scales), and how they are tough scales that cover the skin of elasmobranchs (sharks and rays). It explains how they sense electrical impulses from everything around them. How Sharks use 3D mapping sensors like radar to sense everything that moves around it. The footage explains how sharks see 10 times better than humans in low light conditions and many more interesting elements. Please watch and enjoy.
Footage courtesy of the British Broadcast Corporation.
wn.com/3D Shark Awesome Graphics Wow
How do sharks work? This is a very cool 3D computer graphics presentation of the anatomy & science of sharks. This fabulous computer demonstration shows how sharks work. How their bodies operate in the underwater environment. All their super charged senses are unique to them.
This video explains dermal denticles (placoid scales), and how they are tough scales that cover the skin of elasmobranchs (sharks and rays). It explains how they sense electrical impulses from everything around them. How Sharks use 3D mapping sensors like radar to sense everything that moves around it. The footage explains how sharks see 10 times better than humans in low light conditions and many more interesting elements. Please watch and enjoy.
Footage courtesy of the British Broadcast Corporation.
- published: 06 Aug 2012
- views: 5317
Shark Skin Is Actually Teeth!
Shark's skin is a suit of armor made of teeth that helps them swim faster and sneak up on prey while hunting using stealth. They're called dermal denticles and ...
Shark's skin is a suit of armor made of teeth that helps them swim faster and sneak up on prey while hunting using stealth. They're called dermal denticles and are very similar to the make-up of human teeth.
Did you know that a shark’s skin is very similar to a human tooth?
There are 2 kinds of fish skeletally speaking. There’s those with skeletons made of bone and those with skeletons made of cartilage. Cartilaginous fish, like sharks, don’t have what we traditionally think of as scales. They have what are called dermal denticles on the surface of their bodies.
Dermal denticle roughly translates to “skin tooth” and this is why. Just like your teeth these dermal denticles have pulp inside; you know the stuff that hurts like hell if you get a bad cavity. Around their pulp is a layer of enamel just like our teeth. These microscopic denticles cover a sharks body.
The denticles grow one layer at a time with each new layer growing on top of or in the gaps between the existing dermal denticles, forming basically suit of armor made of very tinny teeth around a shark.
The benefits of these versus scales it that the denticles are grooved causing less water resistance which allows a shark to swim faster and sneak up on its prey better with less water disruption.
Natures design is so efficient that swimsuit manufacturers have started employing a similar design in their new top of the line racing suits.
For more shark stories click the like button and check out the links below, or just click the subscribe button and we’ll see you next time.
Subscribe to Knowledge Feed for Myth Mania Mondays, Fact Tree Tuesdays, Origin Wonder Wednesdays & Fun Fact Fridays.
wn.com/Shark Skin Is Actually Teeth
Shark's skin is a suit of armor made of teeth that helps them swim faster and sneak up on prey while hunting using stealth. They're called dermal denticles and are very similar to the make-up of human teeth.
Did you know that a shark’s skin is very similar to a human tooth?
There are 2 kinds of fish skeletally speaking. There’s those with skeletons made of bone and those with skeletons made of cartilage. Cartilaginous fish, like sharks, don’t have what we traditionally think of as scales. They have what are called dermal denticles on the surface of their bodies.
Dermal denticle roughly translates to “skin tooth” and this is why. Just like your teeth these dermal denticles have pulp inside; you know the stuff that hurts like hell if you get a bad cavity. Around their pulp is a layer of enamel just like our teeth. These microscopic denticles cover a sharks body.
The denticles grow one layer at a time with each new layer growing on top of or in the gaps between the existing dermal denticles, forming basically suit of armor made of very tinny teeth around a shark.
The benefits of these versus scales it that the denticles are grooved causing less water resistance which allows a shark to swim faster and sneak up on its prey better with less water disruption.
Natures design is so efficient that swimsuit manufacturers have started employing a similar design in their new top of the line racing suits.
For more shark stories click the like button and check out the links below, or just click the subscribe button and we’ll see you next time.
Subscribe to Knowledge Feed for Myth Mania Mondays, Fact Tree Tuesdays, Origin Wonder Wednesdays & Fun Fact Fridays.
- published: 08 Aug 2014
- views: 4889
BIO190 Session #09 Fall 2014
Introduction to Marine Life with Kera Mathes
produced in association with the Aquarium of the Pacific
Topic: Sharks
www.youtube.com/csuDHTV
Introduction Guest:...
Introduction to Marine Life with Kera Mathes
produced in association with the Aquarium of the Pacific
Topic: Sharks
www.youtube.com/csuDHTV
Introduction Guest: Nicky Leier
https://youtu.be/SwipxiSPCEI?t=3m9s
Question: What is a fresh water saw fish?
https://youtu.be/SwipxiSPCEI?t=6m45s
What is a Shark:
https://youtu.be/SwipxiSPCEI?t=10m2s
Cartilaginous Fish:
https://youtu.be/SwipxiSPCEI?t=10m21s
Question: Why is it difficult to have great whites in an aquarium?
https://youtu.be/SwipxiSPCEI?t=14m6s
Question: What types of sharks attack people in the ocean?
https://youtu.be/SwipxiSPCEI?t=15m27s
Question: Are sharks found in every ocean?
https://youtu.be/SwipxiSPCEI?t=17m5s
General Body Form and Fins:
https://youtu.be/SwipxiSPCEI?t=17m35s
Fusiform Shape:
https://youtu.be/SwipxiSPCEI?t=17m41s
Spiracles:
https://youtu.be/SwipxiSPCEI?t=19m09s
Ram Ventilation:
https://youtu.be/SwipxiSPCEI?t=21m22s
Question: Why do sharks come close to shore?
https://youtu.be/SwipxiSPCEI?t=22m5s
Question: How many gills do most sharks have?
https://youtu.be/SwipxiSPCEI?t=22m46s
Fins:
https://youtu.be/SwipxiSPCEI?t=22m53s
Pectoral Fins:
https://youtu.be/SwipxiSPCEI?t=26m1s
Dermal Denticles/ Skin Teeth:
https://youtu.be/SwipxiSPCEI?t=26m22s
Modify Dermal Denticles:
https://youtu.be/SwipxiSPCEI?t=28m8s
Question: Do sharks prey upon other sharks and what holds sharks teeth?
https://youtu.be/SwipxiSPCEI?t=28m48s
Question: How many species of sharks are there?
https://youtu.be/SwipxiSPCEI?t=30m5s
Question: Why do sharks roll their eyes back when they feed?
https://youtu.be/SwipxiSPCEI?t=30m20s
Shark Senses:
https://youtu.be/SwipxiSPCEI?t=30m57s
Hearing:
https://youtu.be/SwipxiSPCEI?t=31m18s
Olfaction Smelling:
https://youtu.be/SwipxiSPCEI?t=31m56s
Lateral Line:
https://youtu.be/SwipxiSPCEI?t=32m30s
Vision:
https://youtu.be/SwipxiSPCEI?t=33m56s
Ampullae of Lorenzini:
https://youtu.be/SwipxiSPCEI?t=34m59s
Touch and Taste:
https://youtu.be/SwipxiSPCEI?t=37m42s
Teeth and Jaws:
https://youtu.be/SwipxiSPCEI?t=39m8s
Sharp and Pointy:
https://youtu.be/SwipxiSPCEI?t=40m12s
Serrated:
https://youtu.be/SwipxiSPCEI?t=41m46s
Question: Do sharks ever run out of teeth?
https://youtu.be/SwipxiSPCEI?t=43m24s
Crushing:
https://youtu.be/SwipxiSPCEI?t=44m49s
Gill Rakers:
https://youtu.be/SwipxiSPCEI?t=46m8s
Gender Difference:
https://youtu.be/SwipxiSPCEI?t=59m46s
Life Span:
https://youtu.be/SwipxiSPCEI?t=1h1m18s
Egg Lying:
https://youtu.be/SwipxiSPCEI?t=1h3m27s
Live Birth:
https://youtu.be/SwipxiSPCEI?t=1h6m23s
Internalize Eggs:
https://youtu.be/SwipxiSPCEI?t=1h7m10s
Ovophagy:
https://youtu.be/SwipxiSPCEI?t=1h7m51s
Mystery Item:
https://youtu.be/SwipxiSPCEI?t=1h16m
Conservation/ Shark Attack:
https://youtu.be/SwipxiSPCEI?t=1h18m28s
Shark Finning:
https://youtu.be/SwipxiSPCEI?t=1h21m33s
Leopard Shark:
https://youtu.be/SwipxiSPCEI?t=1h25m58s
Horn Shark:
https://youtu.be/SwipxiSPCEI?t=1h26m36s
Bat Ray:
https://youtu.be/SwipxiSPCEI?t=1h27m5s
wn.com/Bio190 Session 09 Fall 2014
Introduction to Marine Life with Kera Mathes
produced in association with the Aquarium of the Pacific
Topic: Sharks
www.youtube.com/csuDHTV
Introduction Guest: Nicky Leier
https://youtu.be/SwipxiSPCEI?t=3m9s
Question: What is a fresh water saw fish?
https://youtu.be/SwipxiSPCEI?t=6m45s
What is a Shark:
https://youtu.be/SwipxiSPCEI?t=10m2s
Cartilaginous Fish:
https://youtu.be/SwipxiSPCEI?t=10m21s
Question: Why is it difficult to have great whites in an aquarium?
https://youtu.be/SwipxiSPCEI?t=14m6s
Question: What types of sharks attack people in the ocean?
https://youtu.be/SwipxiSPCEI?t=15m27s
Question: Are sharks found in every ocean?
https://youtu.be/SwipxiSPCEI?t=17m5s
General Body Form and Fins:
https://youtu.be/SwipxiSPCEI?t=17m35s
Fusiform Shape:
https://youtu.be/SwipxiSPCEI?t=17m41s
Spiracles:
https://youtu.be/SwipxiSPCEI?t=19m09s
Ram Ventilation:
https://youtu.be/SwipxiSPCEI?t=21m22s
Question: Why do sharks come close to shore?
https://youtu.be/SwipxiSPCEI?t=22m5s
Question: How many gills do most sharks have?
https://youtu.be/SwipxiSPCEI?t=22m46s
Fins:
https://youtu.be/SwipxiSPCEI?t=22m53s
Pectoral Fins:
https://youtu.be/SwipxiSPCEI?t=26m1s
Dermal Denticles/ Skin Teeth:
https://youtu.be/SwipxiSPCEI?t=26m22s
Modify Dermal Denticles:
https://youtu.be/SwipxiSPCEI?t=28m8s
Question: Do sharks prey upon other sharks and what holds sharks teeth?
https://youtu.be/SwipxiSPCEI?t=28m48s
Question: How many species of sharks are there?
https://youtu.be/SwipxiSPCEI?t=30m5s
Question: Why do sharks roll their eyes back when they feed?
https://youtu.be/SwipxiSPCEI?t=30m20s
Shark Senses:
https://youtu.be/SwipxiSPCEI?t=30m57s
Hearing:
https://youtu.be/SwipxiSPCEI?t=31m18s
Olfaction Smelling:
https://youtu.be/SwipxiSPCEI?t=31m56s
Lateral Line:
https://youtu.be/SwipxiSPCEI?t=32m30s
Vision:
https://youtu.be/SwipxiSPCEI?t=33m56s
Ampullae of Lorenzini:
https://youtu.be/SwipxiSPCEI?t=34m59s
Touch and Taste:
https://youtu.be/SwipxiSPCEI?t=37m42s
Teeth and Jaws:
https://youtu.be/SwipxiSPCEI?t=39m8s
Sharp and Pointy:
https://youtu.be/SwipxiSPCEI?t=40m12s
Serrated:
https://youtu.be/SwipxiSPCEI?t=41m46s
Question: Do sharks ever run out of teeth?
https://youtu.be/SwipxiSPCEI?t=43m24s
Crushing:
https://youtu.be/SwipxiSPCEI?t=44m49s
Gill Rakers:
https://youtu.be/SwipxiSPCEI?t=46m8s
Gender Difference:
https://youtu.be/SwipxiSPCEI?t=59m46s
Life Span:
https://youtu.be/SwipxiSPCEI?t=1h1m18s
Egg Lying:
https://youtu.be/SwipxiSPCEI?t=1h3m27s
Live Birth:
https://youtu.be/SwipxiSPCEI?t=1h6m23s
Internalize Eggs:
https://youtu.be/SwipxiSPCEI?t=1h7m10s
Ovophagy:
https://youtu.be/SwipxiSPCEI?t=1h7m51s
Mystery Item:
https://youtu.be/SwipxiSPCEI?t=1h16m
Conservation/ Shark Attack:
https://youtu.be/SwipxiSPCEI?t=1h18m28s
Shark Finning:
https://youtu.be/SwipxiSPCEI?t=1h21m33s
Leopard Shark:
https://youtu.be/SwipxiSPCEI?t=1h25m58s
Horn Shark:
https://youtu.be/SwipxiSPCEI?t=1h26m36s
Bat Ray:
https://youtu.be/SwipxiSPCEI?t=1h27m5s
- published: 06 Nov 2014
- views: 149
BIO190 Session #9 Fall 2015
Introduction to Marine Life with Kera Mathes
Produced in association with the Aquarium of the Pacific
www.youtube.com/csuDHTV (Please Subscribe)
Sharks
https:...
Introduction to Marine Life with Kera Mathes
Produced in association with the Aquarium of the Pacific
www.youtube.com/csuDHTV (Please Subscribe)
Sharks
https://youtu.be/JM8__ipJhDg?t=7m42s
A Shark is a Cartilaginous Fish
https://youtu.be/JM8__ipJhDg?t=7m54s
Spiracles
https://youtu.be/JM8__ipJhDg?t=10m3s
Dermal Denticles
https://youtu.be/JM8__ipJhDg?t=16m24s
Shark Senses (hearing, olfaction smelling, lateral lines, vision, electrical sense: Ampullae of Lorenzini, Touch/Taste)
https://youtu.be/JM8__ipJhDg?t=19m54s
Teeth (sharp and pointy, serrated, ray teeth: crunching/grinding, no teeth/very little teeth: Gill Rakers)
https://youtu.be/JM8__ipJhDg?t=27m23s
Gill Rakers
https://youtu.be/JM8__ipJhDg?t=36m42s
Mystery Item
https://youtu.be/JM8__ipJhDg?t=44m46s
Egg Laying (reproduction)
https://youtu.be/JM8__ipJhDg?t=59m33s
Question of the Day: Why do sharks have a big liver?
https://youtu.be/JM8__ipJhDg?t=1h1m44s
Live Birth (reproduction)
https://youtu.be/JM8__ipJhDg?t=1h5m43s
Why Do Sharks Bite People?
https://youtu.be/JM8__ipJhDg?t=1h11m49s
Shark Finning
https://youtu.be/JM8__ipJhDg?t=1h13m10s
Local Shark Species
https://youtu.be/JM8__ipJhDg?t=1h18m23s
wn.com/Bio190 Session 9 Fall 2015
Introduction to Marine Life with Kera Mathes
Produced in association with the Aquarium of the Pacific
www.youtube.com/csuDHTV (Please Subscribe)
Sharks
https://youtu.be/JM8__ipJhDg?t=7m42s
A Shark is a Cartilaginous Fish
https://youtu.be/JM8__ipJhDg?t=7m54s
Spiracles
https://youtu.be/JM8__ipJhDg?t=10m3s
Dermal Denticles
https://youtu.be/JM8__ipJhDg?t=16m24s
Shark Senses (hearing, olfaction smelling, lateral lines, vision, electrical sense: Ampullae of Lorenzini, Touch/Taste)
https://youtu.be/JM8__ipJhDg?t=19m54s
Teeth (sharp and pointy, serrated, ray teeth: crunching/grinding, no teeth/very little teeth: Gill Rakers)
https://youtu.be/JM8__ipJhDg?t=27m23s
Gill Rakers
https://youtu.be/JM8__ipJhDg?t=36m42s
Mystery Item
https://youtu.be/JM8__ipJhDg?t=44m46s
Egg Laying (reproduction)
https://youtu.be/JM8__ipJhDg?t=59m33s
Question of the Day: Why do sharks have a big liver?
https://youtu.be/JM8__ipJhDg?t=1h1m44s
Live Birth (reproduction)
https://youtu.be/JM8__ipJhDg?t=1h5m43s
Why Do Sharks Bite People?
https://youtu.be/JM8__ipJhDg?t=1h11m49s
Shark Finning
https://youtu.be/JM8__ipJhDg?t=1h13m10s
Local Shark Species
https://youtu.be/JM8__ipJhDg?t=1h18m23s
- published: 01 Nov 2015
- views: 96
What marine animal is this?
What is this...
It's a Wobbegong shark. Fish are covered with scales, but shark skin (and ray skin) is covered with dermal denticles. Dermal denticles are like ...
What is this...
It's a Wobbegong shark. Fish are covered with scales, but shark skin (and ray skin) is covered with dermal denticles. Dermal denticles are like small teeth: they have a soft centre supplied with blood and nerves, and are coated in a hard, enamel-like material. The denticles don't grow in size as the animal does (unlike fish scales), instead more denticles are added. The denticles face backward from the head; this improves hydrodynamics by creating vortices as the shark moves forward. It's what creates that rough feel when you rub a shark up the wrong way: the animal is smoother to pat if you go front-to-back, which conveniently has your hand moving *away* from the mouth... be a bit wary, though, as the Wobbegong is reportedly the only shark that can reach around and bite its own tail ;-)
wn.com/What Marine Animal Is This
What is this...
It's a Wobbegong shark. Fish are covered with scales, but shark skin (and ray skin) is covered with dermal denticles. Dermal denticles are like small teeth: they have a soft centre supplied with blood and nerves, and are coated in a hard, enamel-like material. The denticles don't grow in size as the animal does (unlike fish scales), instead more denticles are added. The denticles face backward from the head; this improves hydrodynamics by creating vortices as the shark moves forward. It's what creates that rough feel when you rub a shark up the wrong way: the animal is smoother to pat if you go front-to-back, which conveniently has your hand moving *away* from the mouth... be a bit wary, though, as the Wobbegong is reportedly the only shark that can reach around and bite its own tail ;-)
- published: 31 Jul 2012
- views: 688
Great White Shark - Super Predator Instinct / Documentary (English/HD)
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
wn.com/Great White Shark Super Predator Instinct Documentary (English Hd)
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
- published: 02 Jan 2016
- views: 792
Stingray giving birth
Stingray giving birth.
Stingray giving birth at mississippi state on the boat.
Stingrays are a group of rays, which are cartilaginous fish related to sharks. ...
Stingray giving birth.
Stingray giving birth at mississippi state on the boat.
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays), and Myliobatidae (eagle rays).
Most stingrays have one or more barbed stingers (modified from dermal denticles) on the tail, which are used exclusively in self-defense. The stinger may reach a length of approximately 35 cm (14 in), and its underside has two grooves with venom glands. The stinger is covered with a thin layer of skin, the integumentary sheath, in which the venom is concentrated. A few members of the suborder, such as the manta and porcupine rays, do not have stingers.
Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as Dasyatis thetidis, are found in warmer temperate oceans, and others, such as Plesiobatis daviesi, are found in the deep ocean. The river stingrays, and a number of whiptail stingrays (such as the Niger stingray), are restricted to fresh water. Most myliobatoids are demersal (inhabiting the next-to-lowest zone in the water column); but some, such as the pelagic stingray and the eagle rays, are pelagic.
wn.com/Stingray Giving Birth
Stingray giving birth.
Stingray giving birth at mississippi state on the boat.
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays), and Myliobatidae (eagle rays).
Most stingrays have one or more barbed stingers (modified from dermal denticles) on the tail, which are used exclusively in self-defense. The stinger may reach a length of approximately 35 cm (14 in), and its underside has two grooves with venom glands. The stinger is covered with a thin layer of skin, the integumentary sheath, in which the venom is concentrated. A few members of the suborder, such as the manta and porcupine rays, do not have stingers.
Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as Dasyatis thetidis, are found in warmer temperate oceans, and others, such as Plesiobatis daviesi, are found in the deep ocean. The river stingrays, and a number of whiptail stingrays (such as the Niger stingray), are restricted to fresh water. Most myliobatoids are demersal (inhabiting the next-to-lowest zone in the water column); but some, such as the pelagic stingray and the eagle rays, are pelagic.
- published: 28 Dec 2015
- views: 1752
Speedo Fastskin FS II Brief | SwimOutlet.com
Get yours at SwimOutlet.com:
http://www.swimoutlet.com/product_p/2462.htm
The Speedo™ Fastskin™ is one of the most technically advanced briefs. The unique fab...
Get yours at SwimOutlet.com:
http://www.swimoutlet.com/product_p/2462.htm
The Speedo™ Fastskin™ is one of the most technically advanced briefs. The unique fabric mimics a shark's skin with dermal denticles-tiny hydrofoils with v-shaped ridges that decrease drag and turbulence around the body. Muscle compression components reduce muscle vibration. Seaming improves muscle coordination.
• Brief styling with drawstring waist.
• 74% Polyester/26% Lycra.
• Imported.
http://www.SwimOutlet.com is the web's most popular swim shop!
When shopping at http://www.SwimOutlet.com you can always expect the following:
· Low & Free Shipping
· No Hassle Returns and Free Exchange Shipping
· Fast Shipping
· Widest Selection
· 100% Low Price Guarantee
· 24/7 Customer Service
wn.com/Speedo Fastskin Fs Ii Brief | Swimoutlet.Com
Get yours at SwimOutlet.com:
http://www.swimoutlet.com/product_p/2462.htm
The Speedo™ Fastskin™ is one of the most technically advanced briefs. The unique fabric mimics a shark's skin with dermal denticles-tiny hydrofoils with v-shaped ridges that decrease drag and turbulence around the body. Muscle compression components reduce muscle vibration. Seaming improves muscle coordination.
• Brief styling with drawstring waist.
• 74% Polyester/26% Lycra.
• Imported.
http://www.SwimOutlet.com is the web's most popular swim shop!
When shopping at http://www.SwimOutlet.com you can always expect the following:
· Low & Free Shipping
· No Hassle Returns and Free Exchange Shipping
· Fast Shipping
· Widest Selection
· 100% Low Price Guarantee
· 24/7 Customer Service
- published: 30 Sep 2013
- views: 775
Shark sighted at the Andamans!
Sharks (superorder Selachimorpha) are highly aggressive carnivorous fish with razor sharp rows of teeth, with a full cartilaginous skeleton and highly streamlin...
Sharks (superorder Selachimorpha) are highly aggressive carnivorous fish with razor sharp rows of teeth, with a full cartilaginous skeleton and highly streamlined body. They breathe underwater through five to seven gill slits. They have a covering of dermal denticles that protects their skin from damage and parasites, improves their fluid dynamics helping them to move faster and quicker.
There are many species of sharks but species such as the great white shark, tiger shark, blue shark, mako shark and hammerhead are apex predators, which are at the top of the food chain. Even though they are fearsome predators and fascinating animals, they are under a serious threat of survival from fishing and other human activities.
Source: Wikipedia
This footage is part of the professionally-shot broadcast stock footage archive of Wilderness Films India Ltd., the largest collection of imagery from South Asia. The Wilderness Films India collection comprises of thousands of hours of high quality broadcast imagery,
mostly shot on HDCAM 1080i High Definition, HDV and XDCAM. Write to us for licensing this footage on a broadcast format, for use in your production! We are happy to be commissioned to film for you or else provide you with broadcast crewing and production solutions across
South Asia. We pride ourselves in bringing the best of India and South Asia to the world... Reach us at wfi @ vsnl.com and admin@wildfilmsindia.com
wn.com/Shark Sighted At The Andamans
Sharks (superorder Selachimorpha) are highly aggressive carnivorous fish with razor sharp rows of teeth, with a full cartilaginous skeleton and highly streamlined body. They breathe underwater through five to seven gill slits. They have a covering of dermal denticles that protects their skin from damage and parasites, improves their fluid dynamics helping them to move faster and quicker.
There are many species of sharks but species such as the great white shark, tiger shark, blue shark, mako shark and hammerhead are apex predators, which are at the top of the food chain. Even though they are fearsome predators and fascinating animals, they are under a serious threat of survival from fishing and other human activities.
Source: Wikipedia
This footage is part of the professionally-shot broadcast stock footage archive of Wilderness Films India Ltd., the largest collection of imagery from South Asia. The Wilderness Films India collection comprises of thousands of hours of high quality broadcast imagery,
mostly shot on HDCAM 1080i High Definition, HDV and XDCAM. Write to us for licensing this footage on a broadcast format, for use in your production! We are happy to be commissioned to film for you or else provide you with broadcast crewing and production solutions across
South Asia. We pride ourselves in bringing the best of India and South Asia to the world... Reach us at wfi @ vsnl.com and admin@wildfilmsindia.com
- published: 17 Nov 2011
- views: 192
The Deadliest Shark - Shark Documentary National Geographic HD 2015
The Deadliest Shark video. Shark Documentary National Geographic HD 2015. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gi...
The Deadliest Shark video. Shark Documentary National Geographic HD 2015. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
https://youtu.be/dEX7cvWSZFM
wn.com/The Deadliest Shark Shark Documentary National Geographic Hd 2015
The Deadliest Shark video. Shark Documentary National Geographic HD 2015. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
https://youtu.be/dEX7cvWSZFM
- published: 04 Sep 2015
- views: 2383
New Shark Species Can Light Up The Sea
New Shark Species Can Light Up The Sea
World | Indo-Asian News Service | Updated: December 30, 2015 15:28 IST
EMAIL
PRINT
COMMENTS
New Shark Species Can Light ...
New Shark Species Can Light Up The Sea
World | Indo-Asian News Service | Updated: December 30, 2015 15:28 IST
EMAIL
PRINT
COMMENTS
New Shark Species Can Light Up The Sea
The newly identified shark also has a different number and distribution of photophores, which are the tiny cup-shaped organs that give lanternsharks the ability to glow. (Representational Image)
NEW YORK: Researchers have discovered a new species of lanternshark that can light up the dark and deep sea for its benefit.
Called Etmopterus benchleyi, the newly identified species is the only lanternshark discovered in the the Pacific coast of Central America, the researchers said.
It is one among 40 other lanternshark species with the ability to glow in the oceans.
But the new species can be distinguished from its closest relatives based on a combination of colouration, proportional body measurements, arrangement of dermal denticles, and size at maturity, the study said.
It has a uniform dark-black coulouring, as opposed to the greys and browns seen on other lanternsharks, said study lead author Vicky Vasquez from Pacific Shark Research Center in California, US.
The newly identified shark also has a different number and distribution of photophores, which are the tiny cup-shaped organs that give lanternsharks the ability to glow, Live Science reported.
wn.com/New Shark Species Can Light Up The Sea
New Shark Species Can Light Up The Sea
World | Indo-Asian News Service | Updated: December 30, 2015 15:28 IST
EMAIL
PRINT
COMMENTS
New Shark Species Can Light Up The Sea
The newly identified shark also has a different number and distribution of photophores, which are the tiny cup-shaped organs that give lanternsharks the ability to glow. (Representational Image)
NEW YORK: Researchers have discovered a new species of lanternshark that can light up the dark and deep sea for its benefit.
Called Etmopterus benchleyi, the newly identified species is the only lanternshark discovered in the the Pacific coast of Central America, the researchers said.
It is one among 40 other lanternshark species with the ability to glow in the oceans.
But the new species can be distinguished from its closest relatives based on a combination of colouration, proportional body measurements, arrangement of dermal denticles, and size at maturity, the study said.
It has a uniform dark-black coulouring, as opposed to the greys and browns seen on other lanternsharks, said study lead author Vicky Vasquez from Pacific Shark Research Center in California, US.
The newly identified shark also has a different number and distribution of photophores, which are the tiny cup-shaped organs that give lanternsharks the ability to glow, Live Science reported.
- published: 30 Dec 2015
- views: 46
shark vs octopus Brief review & best attack HD
shark vs octopus Brief review & best attacks HD
shark vs octopus Brief review & best attacks HD
Sharks are a group of fish characterized by a cartilaginous ske...
shark vs octopus Brief review & best attacks HD
shark vs octopus Brief review & best attacks HD
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1]
Since then, sharks have diversified into over 505 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
you may see in this video shark vs octopus, shark vs octopus real, shark vs octopus fight, octopus attack, octopus attack shark, octopus vs shark, octopus vs shark fight, shark attack, shark attack octopus
wn.com/Shark Vs Octopus Brief Review Best Attack Hd
shark vs octopus Brief review & best attacks HD
shark vs octopus Brief review & best attacks HD
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1]
Since then, sharks have diversified into over 505 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
you may see in this video shark vs octopus, shark vs octopus real, shark vs octopus fight, octopus attack, octopus attack shark, octopus vs shark, octopus vs shark fight, shark attack, shark attack octopus
- published: 27 Feb 2015
- views: 14029
5 TON SHARK CATCH - FAKE OR REAL?
A friend of mine sent me a video the other day. It claims to show a 5 ton shark that was caught somewhere in Asia. It was pretty grainy and it was hard to tell ...
A friend of mine sent me a video the other day. It claims to show a 5 ton shark that was caught somewhere in Asia. It was pretty grainy and it was hard to tell what I was looking at... but it did resemble a shark...
But C'mon... Five tons? How can that be. What I want to know is this, fake or real?
I did some checking around and found very little about a 5 ton shark being caught... but I did run across some pictures that looked very similar to the video....
In this picture here, you can see the same orange ball...
And in this one, it looks like the same truck....
And the man standing next to it. That's the same guy.
So, I am assuming these images are from the same event.
The pictures were posted on a website and came with a open letter to the star of Animal Planet's River Monsters show - Jeremy Wade.
It claimed the giant creature was actually a 2000 Kilogram Catfish. Local Fish sellers were trying to lift it out of the water with a crane in Sarawak, Malaysia in 2009.
The confusing blog says first it was caught by local fishermen, but then it says it was found dead in a river...
I was almost ready to declare the video a fake for calling a catfish a shark... but then I happened to notice the markings on the back of the fish -- As far as I know, you only see those dots on a whale shark...
Based on the evidence, I am judging the video to be real... It was a shark...and probably weighed 5 tons if not more!
FOOD FOR THOUGHT
harks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.
Since then, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain.
wn.com/5 Ton Shark Catch Fake Or Real
A friend of mine sent me a video the other day. It claims to show a 5 ton shark that was caught somewhere in Asia. It was pretty grainy and it was hard to tell what I was looking at... but it did resemble a shark...
But C'mon... Five tons? How can that be. What I want to know is this, fake or real?
I did some checking around and found very little about a 5 ton shark being caught... but I did run across some pictures that looked very similar to the video....
In this picture here, you can see the same orange ball...
And in this one, it looks like the same truck....
And the man standing next to it. That's the same guy.
So, I am assuming these images are from the same event.
The pictures were posted on a website and came with a open letter to the star of Animal Planet's River Monsters show - Jeremy Wade.
It claimed the giant creature was actually a 2000 Kilogram Catfish. Local Fish sellers were trying to lift it out of the water with a crane in Sarawak, Malaysia in 2009.
The confusing blog says first it was caught by local fishermen, but then it says it was found dead in a river...
I was almost ready to declare the video a fake for calling a catfish a shark... but then I happened to notice the markings on the back of the fish -- As far as I know, you only see those dots on a whale shark...
Based on the evidence, I am judging the video to be real... It was a shark...and probably weighed 5 tons if not more!
FOOD FOR THOUGHT
harks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.
Since then, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain.
- published: 29 Nov 2013
- views: 138386
Biggest Sharks In The World - los tiburones mas grandes del mundo!
Some of the biggest sharks in the world!
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the he...
Some of the biggest sharks in the world!
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.
Since then, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain.
Many shark populations are threatened by human activities.
Description Source: WikiPedia: http://en.wikipedia.org/wiki/Shark
los tiburones mas grandes del mundo
wn.com/Biggest Sharks In The World Los Tiburones Mas Grandes Del Mundo
Some of the biggest sharks in the world!
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.
Since then, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain.
Many shark populations are threatened by human activities.
Description Source: WikiPedia: http://en.wikipedia.org/wiki/Shark
los tiburones mas grandes del mundo
- published: 16 Sep 2013
- views: 78964
Paroon shark vs Piranha
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
Subcribe to my channel:
https://www.youtube.com/channel/UCz4oBYeVMtmYM3IaQIb2AmQ
wn.com/Paroon Shark Vs Piranha
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
Subcribe to my channel:
https://www.youtube.com/channel/UCz4oBYeVMtmYM3IaQIb2AmQ
- published: 27 Aug 2015
- views: 734
Shark toy - is that toy fish real
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. There are more than 465 known species of sharks living in our oceans today. Sharks are an apex predator at or near the top of their marine food chains, and they regulate the populations of species below them. Research has shown that massive depletion of sharks has cascading effects throughout the ocean’s ecosystems.Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1]
Since then, sharks have diversified into over 505 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
About the animation: Learn how it is made :http://www.vfxdofabricio.com.br/
wn.com/Shark Toy Is That Toy Fish Real
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. There are more than 465 known species of sharks living in our oceans today. Sharks are an apex predator at or near the top of their marine food chains, and they regulate the populations of species below them. Research has shown that massive depletion of sharks has cascading effects throughout the ocean’s ecosystems.Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1]
Since then, sharks have diversified into over 505 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
About the animation: Learn how it is made :http://www.vfxdofabricio.com.br/
- published: 18 Feb 2015
- views: 3529707
Random Shark
Random Shark
Shark
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Shark
For other uses, see Shark (disambiguation).
Sharks are a group of...
Random Shark
Shark
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Shark
For other uses, see Shark (disambiguation).
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.[1]
Since, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Their survival is threatened by human-related activities.
Contents:
1 Etymology
2 Evolution
2.1 Taxonomy
3 Anatomy
3.1 Teeth
3.2 Skeleton
3.3 Jaw
3.4 Fins
3.5 Dermal denticles
3.6 Tails
4 Physiology
4.1 Buoyancy
4.2 Respiration
4.3 Thermoregulation
4.4 Osmoregulation
4.5 Digestion
5 Senses
5.1 Smell
5.2 Sight
5.3 Hearing
5.4 Electroreception
5.5 Lateral line
6 Life history
6.1 Reproduction
6.1.1 Sexual
6.1.2 Asexual
6.2 Brooding
6.2.1 Ovoviviparity
6.2.2 Oviparity
6.2.3 Viviparity
7 Behavior
7.1 Speed
7.2 Intelligence
7.3 Sleep
8 Ecology
8.1 Feeding
8.2 Range and habitat
9 Relationship with humans
9.1 Attacks
9.2 In captivity
9.3 In Hawaii
9.4 Popular misconceptions
10 Conservation
10.1 Fishery
10.2 Other threats
10.3 Protection
11 In popular culture
wn.com/Random Shark
Random Shark
Shark
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Shark
For other uses, see Shark (disambiguation).
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.[1]
Since, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Their survival is threatened by human-related activities.
Contents:
1 Etymology
2 Evolution
2.1 Taxonomy
3 Anatomy
3.1 Teeth
3.2 Skeleton
3.3 Jaw
3.4 Fins
3.5 Dermal denticles
3.6 Tails
4 Physiology
4.1 Buoyancy
4.2 Respiration
4.3 Thermoregulation
4.4 Osmoregulation
4.5 Digestion
5 Senses
5.1 Smell
5.2 Sight
5.3 Hearing
5.4 Electroreception
5.5 Lateral line
6 Life history
6.1 Reproduction
6.1.1 Sexual
6.1.2 Asexual
6.2 Brooding
6.2.1 Ovoviviparity
6.2.2 Oviparity
6.2.3 Viviparity
7 Behavior
7.1 Speed
7.2 Intelligence
7.3 Sleep
8 Ecology
8.1 Feeding
8.2 Range and habitat
9 Relationship with humans
9.1 Attacks
9.2 In captivity
9.3 In Hawaii
9.4 Popular misconceptions
10 Conservation
10.1 Fishery
10.2 Other threats
10.3 Protection
11 In popular culture
- published: 26 Jul 2013
- views: 777
Underwater UFO & Great White Shark vs Giant Whale Next Gen GTA 5
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
Subcribe to my channel:
https://www.youtube.com/channel/UCz4oBYeVMtmYM3IaQIb2AmQ
wn.com/Underwater Ufo Great White Shark Vs Giant Whale Next Gen Gta 5
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
Subcribe to my channel:
https://www.youtube.com/channel/UCz4oBYeVMtmYM3IaQIb2AmQ
- published: 27 Aug 2015
- views: 1128
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the ...
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays), and Myliobatidae (eagle rays).
Most stingrays have one or more barbed stingers (modified from dermal denticles) on the tail, which are used exclusively in self-defense. The stinger may reach a length of approximately 35 cm (14 in), and its underside has two grooves with venom glands. The stinger is covered with a thin layer of skin, the integumentary sheath, in which the venom is concentrated. A few members of the suborder, such as the manta and porcupine rays, do not have stingers.
Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as Dasyatis thetidis, are found in warmer temperate oceans, and others, such as Plesiobatis daviesi, are found in the deep ocean. The river stingrays, and a number of whiptail stingrays (such as the Niger stingray), are restricted to fresh water. Most myliobatoids are demersal (inhabiting the next-to-lowest zone in the water column); but some, such as the pelagic stingray and the eagle rays, are pelagic.
wn.com/Hand Feeding Giant Stingrays , Awesome Moments
Hand Feeding Giant Stingrays ! , Awesome Moments ! !
Stingrays are a group of rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deep water stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays), and Myliobatidae (eagle rays).
Most stingrays have one or more barbed stingers (modified from dermal denticles) on the tail, which are used exclusively in self-defense. The stinger may reach a length of approximately 35 cm (14 in), and its underside has two grooves with venom glands. The stinger is covered with a thin layer of skin, the integumentary sheath, in which the venom is concentrated. A few members of the suborder, such as the manta and porcupine rays, do not have stingers.
Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as Dasyatis thetidis, are found in warmer temperate oceans, and others, such as Plesiobatis daviesi, are found in the deep ocean. The river stingrays, and a number of whiptail stingrays (such as the Niger stingray), are restricted to fresh water. Most myliobatoids are demersal (inhabiting the next-to-lowest zone in the water column); but some, such as the pelagic stingray and the eagle rays, are pelagic.
- published: 05 Feb 2016
- views: 5
shark attack 2 men full HD
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
wn.com/Shark Attack 2 Men Full Hd
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.
Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.
- published: 30 Apr 2015
- views: 3174
News of Shark/Bangladesh sea
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.[1]
Since, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Their survival is threatened by human-related activities.
wn.com/News Of Shark Bangladesh Sea
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.[1]
Since, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have several sets of replaceable teeth.[3]
Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Their survival is threatened by human-related activities.
- published: 29 Jan 2011
- views: 180108
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu adalah sekelompok (superordo Selachimorpha) ikan dengan kerangka tulang rawan yang lengkap [1] dan tubuh yang ram...
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu adalah sekelompok (superordo Selachimorpha) ikan dengan kerangka tulang rawan yang lengkap [1] dan tubuh yang ramping. Mereka bernapas dengan menggunakan lima liang insang (kadang-kadang enam atau tujuh, tergantung pada spesiesnya) di samping, atau dimulai sedikit di belakang, kepalanya. Hiu mempunyai tubuh yang dilapisi kulit dermal denticles untuk melindungi kulit mereka dari kerusakan, dari parasit, dan untuk menambah dinamika air.[1] Mereka mempunyai beberapa deret gigi yang dapat digantikan.
Hiu mencakup spesies yang berukuran sebesar telapak tangan. Hiu pigmi, Euprotomicrus bispinatus, sebuah spesies dari laut dalam yang panjangnya hanya 22 cm, hingga hiu paus, Rhincodon typus, ikan terbesar yang mampu tumbuh hingga sekitar 12 meter dan yang, seperti ikan paus, hanya memakan plankton melalui alat penyaring di mulutnya. Hiu banteng, Carcharhinus leucas, adalah yang paling terkenal dari beberapa spesies yang berenang di air laut maupun air tawar (jenis ini ditemukan di Danau Nikaragua, di Amerika Tengah) dan di delta-delta.[2]
Wikipedia.
wn.com/Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu Terbesar Di Dunia Tertangkap
Ikan Hiu adalah sekelompok (superordo Selachimorpha) ikan dengan kerangka tulang rawan yang lengkap [1] dan tubuh yang ramping. Mereka bernapas dengan menggunakan lima liang insang (kadang-kadang enam atau tujuh, tergantung pada spesiesnya) di samping, atau dimulai sedikit di belakang, kepalanya. Hiu mempunyai tubuh yang dilapisi kulit dermal denticles untuk melindungi kulit mereka dari kerusakan, dari parasit, dan untuk menambah dinamika air.[1] Mereka mempunyai beberapa deret gigi yang dapat digantikan.
Hiu mencakup spesies yang berukuran sebesar telapak tangan. Hiu pigmi, Euprotomicrus bispinatus, sebuah spesies dari laut dalam yang panjangnya hanya 22 cm, hingga hiu paus, Rhincodon typus, ikan terbesar yang mampu tumbuh hingga sekitar 12 meter dan yang, seperti ikan paus, hanya memakan plankton melalui alat penyaring di mulutnya. Hiu banteng, Carcharhinus leucas, adalah yang paling terkenal dari beberapa spesies yang berenang di air laut maupun air tawar (jenis ini ditemukan di Danau Nikaragua, di Amerika Tengah) dan di delta-delta.[2]
Wikipedia.
- published: 02 Feb 2014
- views: 1082971