A sheep's death marks the loss of a quiet hero whose steady companionship shaped the recovery of rhino and elephant orphans ...

American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia for 35 years, ...

Experts worry cheetahs may one day be on the brink of extinction and need artificial reproduction to save them. View on ...

Milwaukee County Zoo opened its new rhino and hippo habitat Dec. 5, completing its Adventure Africa project, a $50 million ...

Elephant seals don't forget their enemies. We learn about the great beasts' big beefs and why they matter.

Talk about a silver lining. After these two wild animals faced similar unfortunate circumstances, they formed the cutest ...