Here’s a recap of animal stories and events from the past week:
Interesting discoveries:
- A newly-found Siberian skull hints that dogs may have been domesticated as far back as 33,000 years ago.
- A study suggests that rats sniff each other to assert dominance.
New additions:
- A baby aardvark was born at Busch Gardens.
- Rare kissing octopuses were publicly unveiled for the first time.
Some sad news:
- A polar bear trade ban was rejected during a CITES meeting.
- A recently-published report shows that elephants are being decimated by the ivory trade.
Caught on camera:
- Adorable animals play with human toys
- Cows dance with joy upon seeing grass for the first time in months
- A giant salamander slurps up a whole fish.
Check out the newest and best animal photos below:
Animal Photos Of The Week (9/16-9/22)
YANTAI, CHINA - SEPTEMBER 19: A giant panda eats 'Mooncake' at a zoo on Mid-Autumn Day on September 19, 2013 in Yantai, Shandong Province of China. Mid-Autumn Day is a harvest day celebrated in China and other parts of Asia. It falls on the August 15th in the Chinese Lunar Calendar. (Photo by ChinaFotoPress/Getty Images)
Animal Photos Of The Week (9/16-9/22)
YANTAI, CHINA - SEPTEMBER 19: (CHINA OUT) A giant panda eats 'Mooncake' at a zoo on Mid-Autumn Day on September 19, 2013 in Yantai, Shandong Province of China. Mid-Autumn Day is a harvest day celebrated in China and other parts of Asia. It falls on the August 15th in the Chinese Lunar Calendar. (Photo by ChinaFotoPress/Getty Images)
Animal Photos Of The Week (9/16-9/22)
BROOKFIELD, IL - SEPTEMBER 18: A three-month-old snow leopard cub explores his enclosure at Brookfield Zoo as he makes his debut to the public on September 18, 2013 in Brookfield, Illinois. The cub was born on June 13 to Sarani who is on breeding loan from Tautphaus Park Zoo in Idaho Falls Idaho and her mate Sabu who is on breeding loan from Cape May county Park Zoo in New Jersey. There are an estimated 3,500 to 7,000 of the endangered leopards remaining in the wild. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
BROOKFIELD, IL - SEPTEMBER 18: A three-month-old snow leopard cub is watched over by his mother as he prepares to make his public debut at the Brookfield Zoo on September 18, 2013 in Brookfield, Illinois. The cub was born on June 13 to his mother Sarani who is on breeding loan from Tautphaus Park Zoo in Idaho Falls Idaho and her mate Sabu who is on breeding loan from Cape May county Park Zoo in New Jersey. There are an estimated 3,500 to 7,000 of the endangered leopards remaining in the wild. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
BROOKFIELD, IL - SEPTEMBER 18: A three-month-old snow leopard cub plays with his mother during his public debut at the Brookfield Zoo on September 18, 2013 in Brookfield, Illinois. The cub was born on June 13 to his mother Sarani who is on breeding loan from Tautphaus Park Zoo in Idaho Falls Idaho and her mate Sabu who is on breeding loan from Cape May county Park Zoo in New Jersey. There are an estimated 3,500 to 7,000 of the endangered leopards remaining in the wild. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
Pink flamingos flock around a young grey flamingo (C) in Baghdad's Al-Zawraa Zoo on September 17, 2013, following the first successful breeding of its kind in an Iraqi zoo after 10 years of environmental adjustments to suit living conditions for this type of bird.(ALI AL-SAADI/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
CHICAGO, IL - SEPTEMBER 17: King, an Eastern black rhinoceros born August 26, makes his public debut at the Lincoln Park Zoo with his mother Kapuki on September 17, 2013 in Chicago, Illinois. King's father Maku, 27, is on breeding loan from Caldwell Zoo in Tyler, Texas and his mother, 8, is on loan from Brookfield Zoo in suburban Chicago. Eastern black rhinos are critically endangered in their native Africa due largely to poaching. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
CHICAGO, IL - SEPTEMBER 17: King, an Eastern black rhinoceros born August 26, makes his public debut at the Lincoln Park Zoo with his mother Kapuki on September 17, 2013 in Chicago, Illinois. King's father Maku, 27, is on breeding loan from Caldwell Zoo in Tyler, Texas and his mother, 8, is on loan from Brookfield Zoo in suburban Chicago. Eastern black rhinos are critically endangered in their native Africa due largely to poaching. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
CHICAGO, IL - SEPTEMBER 17: King, an Eastern black rhinoceros born August 26, makes his public debut at the Lincoln Park Zoo with his mother Kapuki on September 17, 2013 in Chicago, Illinois. King's father Maku, 27, is on breeding loan from Caldwell Zoo in Tyler, Texas and his mother, 8, is on loan from Brookfield Zoo in suburban Chicago. Eastern black rhinos are critically endangered in their native Africa due largely to poaching. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
CHICAGO, IL - SEPTEMBER 17: King, an Eastern black rhinoceros born August 26, makes his public debut at the Lincoln Park Zoo with his mother Kapuki on September 17, 2013 in Chicago, Illinois. King's father Maku, 27, is on breeding loan from Caldwell Zoo in Tyler, Texas and his mother, 8, is on loan from Brookfield Zoo in suburban Chicago. Eastern black rhinos are critically endangered in their native Africa due largely to poaching. (Photo by Scott Olson/Getty Images)
Animal Photos Of The Week (9/16-9/22)
Eagles are pictured at the Fauna films park, on September 18, 2013 in Villemer, outside of Paris. With few hectares, Fauna Films, founded by Pierre Cadeac, hosts about 200 species of animals trained for films, advertising campaigns etc. (MIGUEL MEDINA/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
A wolf is pictured at the Fauna films park, on September 18, 2013 in Villemer, outside of Paris. With few hectares, Fauna Films, founded by Pierre Cadeac, hosts about 200 species of animals trained for films, advertising campaigns etc. (MIGUEL MEDINA/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
A wolf is pictured at the Fauna films park, on September 18, 2013 in Villemer, outside of Paris. With few hectares, Fauna Films, founded by Pierre Cadeac, hosts about 200 species of animals trained for films, advertising campaigns etc. (MIGUEL MEDINA/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
A wolf is pictured at the Fauna films park, on September 18, 2013 in Villemer, outside of Paris. With few hectares, Fauna Films, founded by Pierre Cadeac, hosts about 200 species of animals trained for films, advertising campaigns etc. (MIGUEL MEDINA/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
Wolfs are pictured at the Fauna films park, on September 18, 2013 in Villemer, outside of Paris. With few hectares, Fauna Films, founded by Pierre Cadeac, hosts about 200 species of animals trained for films, advertising campaigns etc. (MIGUEL MEDINA/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
Sheep graze in a field in Gaza City on September 19, 2013. (MOHAMMED ABED/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
A white lioness sniffs a pumpkin filled with chicken in Ouwehands Dierenpark in Rhenen on September 19, 2013. In order to stimulate natural behavior of the animals, the zoo feeds them food which they have to work for. (LEX VAN LIESHOUT/AFP/Getty Images)
Animal Photos Of The Week (9/16-9/22)
In this photo taken Saturday, Sep. 21, 2013, bear cubs walk inside the forest enclosure of the International Fund for Animal Welfare (IFAW) Bear Rescue Center, near the village of Bubonitsy, 350 kilometers (220 miles) northwest of Moscow, Russia. Bears were once hunted by Russians for their fur and their blubber, but trophy hunting is gaining ground among a wealthy new class with cash to burn. Russian authorities have made efforts to crack down particularly on den hunting, or the stalking of a mother bear with her young during winter hibernation, which leaves hundreds of cubs orphaned each year. (AP Photo/Alexander Zemlianichenko Jr)
Animal Photos Of The Week (9/16-9/22)
In this photo taken Saturday, Sep. 21, 2013, bear cubs walk inside the forest enclosure of the International Fund for Animal Welfare (IFAW) Bear Rescue Center, near the village of Bubonitsy, 350 kilometers (220 miles) northwest of Moscow, Russia. Bears were once hunted by Russians for their fur and their blubber, but trophy hunting is gaining ground among a wealthy new class with cash to burn. Russian authorities have made efforts to crack down particularly on den hunting, or the stalking of a mother bear with her young during winter hibernation, which leaves hundreds of cubs orphaned each year. (AP Photo/Alexander Zemlianichenko Jr)
Animal Photos Of The Week (9/2-9/15)
This photo released Friday Sept. 6, 2013 by the Buffalo Zoo shows a new baby western lowland gorilla. (AP Photo/Buffalo Zoo, Kelly Brown)
Animal Photos Of The Week (9/2-9/15)
This photo released Friday Sept. 6, 2013 by the Buffalo Zoo shows a new baby western lowland gorilla. Zoo officials say the baby gorilla was born Wednesday Sept. 4, 2013. (AP Photo/Buffalo Zoo, Kelly Brown)
Animal Photos Of The Week (9/2-9/15)
Elephant mother Tonga, left, and half-sister Mongu stand next to the one day-old and yet unnamed female elephant calf at the Schoenbrunn zoo in Vienna, Austria. (AP Photo/Hans Punz)
Animal Photos Of The Week (9/2-9/15)
Jia Jia, a female Giant Panda hides behind her birthday treat of bamboo, Friday, Sept. 6, 2013, at the River Safari, part of the Wildlife Reserves and the Singapore Zoo in Singapore. (AP Photo/Wong Maye-E)
Animal Photos Of The Week (9/2-9/15)
Jia Jia, a female Giant Panda, bites bamboo, Friday, Sept. 6, 2013, at the River Safari, part of the Wildlife Reserves and the Singapore Zoo in Singapore. (AP Photo/Wong Maye-E)
Animal Photos Of The Week (9/2-9/15)
A zebra feeds her baby at the Alipore zoo garden in Kolkata, India, Sunday, Sept. 8, 2013. The Alipore zoo has currently four adult zebras and one calf. (AP Photo/Bikas Das)
Animal Photos Of The Week (9/2-9/15)
In this Wednesday, Sept. 11, 2013 photo provided by the Chicago Zoological Society, Mona, a 15-year-old addax, nuzzles up to her unnamed calf at the Brookfield Zoo in Brookfield, Ill. The calf, born Sept. 4, is the fourth male addax born at the zoo this summer. All the births are important for the species, which is near the brink of extinction in the Sahara deserts of Africa. (AP Photo/Chicago Zoological Society, Jim Schulz)
Animal Photos Of The Week (9/2-9/15)
A baby giraffe born at Como Zoo in St. Paul just a week ago made her public debut Sunday Sept. 8, 2013. The as-yet unnamed giraffe, weighed 130 lbs. and was five foot eight inches tall at birth. It's her mother, Clover's fifth calf and the 17th giraffe born at Como in the last 20 years. (AP Photo/The Star Tribune, Jeff Wheeler)
Animal Photos Of The Week (9/2-9/15)
A baby giraffe born at Como Zoo in St. Paul just a week ago made her public debut Sunday Sept. 8, 2013. The as-yet unnamed giraffe, weighed 130 lbs. and was five foot eight inches tall at birth. It's her mother, Clover's fifth calf and the 17th giraffe born at Como in the last 20 years. (AP Photo/The Star Tribune, Jeff Wheeler)
Animal Photos Of The Week (9/2-9/15)
A one horned rhinoceros walks through a higher land at the flooded Pobitora wildlife sanctuary in Assam, India, Monday, Sept. 9, 2013. Assam is home to the world's largest concentration of the rare rhino. According to the Press Trust of India, 90% of the sanctuary has been inundated by overflowing rivers forcing animals to migrate to higher grounds. (AP Photo/Anupam Nath)
Animal Photos Of The Week (9/2-9/15)
A one horned rhinoceros swims in flood waters at the Pobitora wildlife sanctuary in Assam, India, Monday, Sept. 9, 2013. Assam is home to the world's largest concentration of the rare rhino. According to the Press Trust of India, 90% of the sanctuary has been inundated by overflowing rivers forcing animals to migrate to higher grounds. (AP Photo/Anupam Nath)
Animal Photos Of The Week (8/26-9/1)
Young lion cubs sleep as temperatures hit the high 90s at the Henry Doorly Zoo in Omaha, Neb., Friday, Aug. 30, 2013. (AP Photo/Nati Harnik)
Animal Photos Of The Week (8/26-9/1)
This Aug. 28, 2013 photo provided by Chicago's Lincoln Park Zoo shows an Eastern black rhinoceros calf at the zoo in Chicago. The new baby, born Aug. 26, weighed 60 pounds at birth. Black rhinos are endangered and are a target for poachers. Lincoln Park Zoo is dedicated to rhino conservation. (AP Photo/Lincoln Park Zoo, Todd Rosenberg)
Animal Photos Of The Week (8/26-9/1)
This Aug. 28, 2013 photo provided by Chicago's Lincoln Park Zoo shows an Eastern black rhinoceros calf walking with its mother, 8-year-old Kapuki, at the zoo in Chicago. The new baby, born Aug. 26, weighed 60 pounds at birth. Black rhinos are endangered and are a target for poachers. Lincoln Park Zoo is dedicated to rhino conservation. (AP Photo/Lincoln Park Zoo, Todd Rosenberg)
Animal Photos Of The Week (8/26-9/1)
A zoo keeper holds one of three eight week old fishing cat cubs at the zoo in Duisburg, Germany, on Wednesday, Aug. 28, 2013. The cubs with webs on their paws are quite rare and belong to a threatened species. The cats are able to swim to chase for fish. (AP Photo/FrankAugstein)
Animal Photos Of The Week (8/26-9/1)
Zoo keepers hold three eight week old fishing cat cubs at the zoo in Duisburg, Germany, on Wednesday, Aug.28, 2013. The cubs with webs on their paws are quite rare and belong to a threatened species. The cats are able to swim to chase for fish. (AP Photo/FrankAugstein)
Animal Photos Of The Week (8/26-9/1)
This undated handout photograph released by the Taipei City Zoo on August 29, 2013 shows a panda cub opening her eyes at the Taipei City Zoo. The cub, the first panda born in Taiwan, was delivered on July 7 following a series of artificial insemination sessions after her parents -- Yuan Yuan and her partner Tuan Tuan -- failed to conceive naturally. (Taipei City Zoo/AFP/Getty Images)
Animal Photos Of The Week (8/26-9/1)
This undated handout photograph released by the Taipei City Zoo on August 29, 2013 shows giant panda Yuan Yuan holding her baby panda at the Taipei City Zoo. The cub, the first panda born in Taiwan, was delivered on July 7 following a series of artificial insemination sessions after her parents -- Yuan Yuan and her partner Tuan Tuan -- failed to conceive naturally. (Taipei City Zoo/AFP/Getty Images)
Animal Photos Of The Week (8/26-9/1)
Four caracal cubs sit in a basket as they are presented to media for the first time at the Animal Park zoo in Berlin, Friday, Aug. 30, 2013. The caracals, also known as desert lynxes, were born in the zoo on July 21, 2013. (AP Photo/Markus Schreiber)
Animal Photos Of The Week (8/26-9/1)
A duck floats in a pond in Gorky Park in central Moscow on August 31, 2013. (KIRILL KUDRYAVTSEV/AFP/Getty Images)
Animal Photos Of The Week (8/26-9/1)
Christie Carr, left, watches Irwin the kangaroo at their new home at the Garold Wayne Interactive Zoological Park in Wynnewood, Okla. on Wednesday, Aug. 28, 2013. The two moved to the exotic animal park in March 2013 after battling the Broken Arrow, Okla. city council over her right to keep him. Carr says the move has been good for both herself and the kangaroo. She says Irwin is able to interact with more people and the other animals help with her depression. (AP Photo/Sue Ogrocki)
Animal Photos Of The Week (8/26-9/1)
A Kuwaiti woman holds a duckling at a bird market in Kuwait City on September 1, 2013. (YASSER AL-ZAYYAT/AFP/Getty Images)
Animal Photos Of The Week (8/26-9/1)
Storks fly over the border between Turkey and Syria, as they prepare to migrate on September 1, 2013, in Hatay. (BULENT KILIC/AFP/Getty Images)
Animal Photos Of The Week (8/19-8/25)
An orangutan covers itself with a blanket during winter time at Rio de Janeiro Zoo in Brazil on August 22, 2013. (YASUYOSHI CHIBA/AFP/Getty Images)
Animal Photos Of The Week (8/19-8/25)
An orangutan covers itself with a blanket during winter time at Rio de Janeiro Zoo in Brazil on August 22, 2013. (YASUYOSHI CHIBA/AFP/Getty Images)
Animal Photos Of The Week (8/19-8/25)
BERLIN, GERMANY - AUGUST 23: Two-year-old polar bear Wolodja swims in his enclosure at Tiergarten Berlin zoo on August 23, 2013 in Berlin, Germany. The zoo recently aquired Wolodja from a zoo in Moscow and zoo authorities are hoping he will pair with a female polar bear to impregnate her with a cub. Another polar bear cub, Knut, rose to world fame after he was born at Zoo Berlin and was rejected by his mother. (Photo by Sean Gallup/Getty Images)
Animal Photos Of The Week (8/19-8/25)
Wolodja, a young male polar bear plays in its enclosure at the animal park in Berlin-Friedrichsfelde, Germany, Friday, Aug. 23, 2013. The two-year-old male bear was born on Nov. 27, 2011 in Moscow and arrived in Berlin on Aug. 9, 2013. In Berlin, Wolodja is meant to be a mate for female polar bear Tonja. (AP Photo/dpa, Susanne Petersohn)
Animal Photos Of The Week (8/19-8/25)
BERLIN, GERMANY - AUGUST 23: Two-year-old polar bear Wolodja jumps into the water for a swim in his enclosure at Tiergarten Berlin zoo on August 23, 2013 in Berlin, Germany. The zoo recently aquired Wolodja from a zoo in Moscow and zoo authorities are hoping he will pair with a female polar bear to impregnate her with a cub. Another polar bear cub, Knut, rose to world fame after he was born at Zoo Berlin zoo and was rejected by his mother. (Photo by Sean Gallup/Getty Images)
Animal Photos Of The Week (8/19-8/25)
BERLIN, GERMANY - AUGUST 23: Two-year-old polar bear Wolodja walks in his enclosure at Tiergarten Berlin zoo on August 23, 2013 in Berlin, Germany. The zoo recently aquired Wolodja from a zoo in Moscow and zoo authorities are hoping he will pair with a female polar bear to impregnate her with a cub. Another polar bear cub, Knut, rose to world fame after he was born at Zoo Berlin and was rejected by his mother. (Photo by Sean Gallup/Getty Images)
Animal Photos Of The Week (8/19-8/25)
A one-month young Alaotra-Mangoro Madagascar Monkey baby stands next its mother in the city zoo of Szeged, Hungary on August 23, 2013. The small monkey is born on July 23, 2013 and it is presented for public from today. (CSABA SEGESVARI/AFP/Getty Images)
Animal Photos Of The Week (8/19-8/25)
A one-month young Alaotra-Mangoro Madagascar Monkey baby is held by its mother in the city zoo of Szeged, Hungary on August 23, 2013. The small monkey is born on July 23, 2013 and it is presented for public from today. (CSABA SEGESVARI/AFP/Getty Images)
Animal Photos Of The Week (8/19-8/25)
A one-month young Alaotra-Mangoro Madagascar Monkey baby stands next its mother in the city zoo of Szeged, Hungary on August 23, 2013. The small monkey is born on July 23, 2013 and it is presented for public from today. (CSABA SEGESVARI/AFP/Getty Images)
Posted: 03/10/2013 11:20 am EDT