Sumatran rhino gives birth, offering hope for critically endangered species
Robert Irwin shares emotional video with baby turtle his dad discovered
Whitefish species declared extinct is now confirmed to be alive
Marine scientists spot rare handfish not seen in 27 years
North Carolina Zoo welcomes 2 litters of endangered red wolf pups
Endangered Sumatran orangutan welcomes baby at Sacramento Zoo
World's smallest, most endangered sea turtle species seen hatching for first time in 75 years
Endangered baby rhino made his public debut at Disney's Animal Kingdom
Adorable pygmy possums have been rediscovered after fears of extinction
UK resort has a mini 'holiday park' for hedgehogs to hibernate
Chris Hemsworth is helping to bring Tasmanian devils back to Australia
The orca who carried her dead calf for 1,000 miles is pregnant again
Diego, the tortoise whose mating habits helped save his species from extinction, is retiring
A baby southern white rhino was born at the San Diego Zoo—here's why that's a big deal
These 13-year-olds saved 400 hedgehogs by building their own garden hospital
This chimpanzee playing 'airplane' with its baby is the cutest thing you'll see all day
April the giraffe is pregnant again
Zoo welcomes endangered leopard cubs and they are just too sweet
Lacoste is temporarily changing its logo—and it's for a great cause!
Portia De Rossi just gave Ellen DeGeneres 'the best gift' for her 60th birthday
Cleveland Zoo's Otter Pups Are The Cutest Explorers
Disney World's rare tiger cubs make public debut — see the pics
There Is Only One Male Northern White Rhino Left In The World
Manatees No Longer Listed As Endangered And Some Experts Are Worried