- published: 18 Feb 2016
- views: 955675
Birds (class Aves) are a group of endothermic vertebrates, characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds.
The fossil record indicates that birds are the last surviving dinosaurs, having evolved from feathered ancestors within the theropod group of saurischian dinosaurs. True birds first appeared during the Cretaceous period, around 100 million years ago, and the last common ancestor is estimated to have lived about 95 million years ago. DNA-based evidence finds that birds radiated extensively around the time of the Cretaceous–Paleogene extinction event that killed off the non-avian dinosaurs. Birds in South America survived this event and then migrated to other parts of the world via multiple land bridges while diversifying during periods of global cooling. Primitive bird-like "stem-birds" that lie outside class Aves proper, in the group Avialae, have been found dating back to the mid-Jurassic period. Many of these early stem-birds, such as Archaeopteryx, were not yet capable of fully powered flight, and many retained primitive characteristics like toothy jaws in place of beaks and long bony tails.
19 of the funniest birds you'll see this week. The Pet Collective is home to the top trending clips, most entertaining memes, and funniest animal videos online. Simply put, we think animals are the best ever. If you agree, let’s make it YouTube official right here, right meow: Subscribe to The Pet Collective: http://bit.ly/tpcsub Website: http://www.thepetcollective.tv Facebook: http://www.facebook.com/thepetcollective Instagram: http://www.instagram.com/petcollectivetv Pinterest: http://pinterest.com/petcollectivetv/ Want to submit your own awesome pet vid to us? There's a link for that! jukinmedia.com/video-submissions Watch the Originals: https://www.youtube.com/watch?v=6_-4KArFR08 https://www.youtube.com/watch?v=t1wAjcWHkDY https://www.youtube.com/watch?v=pLJegq01S6A https://www.y...
Explore more: http://www.birdsofparadiseproject.org The Birds-of-Paradise Project reveals the astounding beauty of 39 of the most exquisitely specialized animals on earth. After 8 years and 18 expeditions to New Guinea, Australia, and nearby islands, Cornell Lab scientist Ed Scholes and National Geographic photojournalist Tim Laman succeeded in capturing images of all 39 species in the bird-of-paradise family for the first time ever. This trailer gives a sense of their monumental undertaking and the spectacular footage that resulted. Filmed by Tim Laman, Ed Scholes, and Eric Liner. Also be on the lookout for the Cornell Lab's and National Geographic's gorgeous coffee-table book (http://amzn.to/RYb7IL), a major exhibit at the National Geographic Museum (http://ngmuseum.org/bop), a TV do...
Watch the first look at The Angry Birds Movie coming to theaters in May 2016! In this hilarious 3D adventure, we'll finally find out why the birds are so angry. FOLLOW US https://www.facebook.com/angrybirdsmovie https://twitter.com/AngryBirds http://www.angrybirds-movie.com/ STORY The movie takes us to an island populated entirely by happy, flightless birds – or almost entirely. In this paradise, Red (Jason Sudeikis - We're the Millers, Horrible Bosses), a bird with a temper problem, speedy Chuck (Josh Gad in his first animated role since Frozen), and the volatile Bomb (Danny McBride - This is the End, Eastbound and Down) have always been outsiders. But when the island is visited by mysterious green piggies, it’s up to these unlikely outcasts to figure out what the pigs are up to. CAST ...
Welcome to The Robin Chronicles. The back story is in the spring of 2012 a robin built a waist high nest in a small tree in my backyard. Every morning I would sneak out while the mother was gone looking for food and take a picture of the progress. Luckily, one afternoon I caught the first bird hatching and filmed it, the mother was pretty mad at me during the 8 minutes of filming, but all the babies survived and flew away 4 weeks later. Very cool!!!
Robin Birds Chirping and Singing - Beautiful Video, Bird Song and Nature Sounds in HD - The National Bird of Great Britain In a recent poll the robin was voted Britain's Favourite http://www.wildlifeincornwall.com/ Video Produced by Paul Dinning - Wildlife in Cornwall
The bird is one of most beautiful creature on our world. Their sound, color, appearance, behaviors, living are so amazing as you will them in this clip such as kingfisher, dove, finches, beautiful little bird, robin bird and other exotic birds. Some of them are rare and endangered birds that we should save. This movie is the compilation of beautiful wild bird, finches, doves, Australian wildlife, animal, landscape photography and other beautiful bird watching. Main video titles used: • Slovakia Wildlife video 2013, • Australian wildlife, • Wildlife video 2014 – zostrih, Video is remixed from creative commons attribution videos and credit to: • 八大燕子, https://vimeo.com/26623114, https://vimeo.com/26622345, https://vimeo.com/12049871, https://vimeo.com/12202664, https://vimeo.com/12888570,...
Sir William is at it again! Here is a "part 2" to his first encounter with these fake birds. His reaction is much funnier this time, and the quality is much better! Enjoy ~ *** SIR WILLIAMS NEW YOUTUBE CHANNEL*** https://www.youtube.com/channel/UCDv6VEYM67VeiqXSLhPD51g View part 1 here! https://www.youtube.com/watch?v=ularAiHsBTI
BLOOPERS & MORE! ►► https://youtu.be/qreS5W7Ogs0 EVERY DOG EVER! ►► https://youtu.be/V0nFjLfR_VI SUBSCRIBE for more Smosh ►►http://www.youtube.com/smosh Birds - whether it's flying into windows, being in the road at the worst times, hatching eggs, and more, this is Every Bird Ever! Cast: Courtney Miller Olivia Sui Shayne Topp Keith Leak Noah Grossman Director: Ryan Todd Assistant Director: Sean McCullough Written by: Anthony Padilla, Ian Hecox, Ryan Finnerty, Shayne Topp, Kurt Maloney, Monica Vasandani, The Smosh Squad Produced by: Anthony Padilla, Ian Hecox, Ryan Todd Creative Director: Joe Bereta Coordinating Producer: Yvonne Peoples Line Producer: Michelle Holman Director of Photography: John Jimenez Camera: Brennan Iketani Assistant Camera: Kyle Haubert Sound: Ivan Harder Grips: ...