Behind the scenes at a Chicago zoo, chimpanzees who spent years entertaining humans are learning to befriend their own kind.

The Milwaukee Zoo mourns the loss of Patti, the oldest hippo in U.S. zoos, who was known for her spirited personality.

Rosebud, nicknamed "Rosie" by zoo staff, was humanely euthanized on Friday after battling progressive arthritis that no ...

Patti was humanely euthanized on Sunday, Nov. 10. According to a statement from the zoo, 55-year-old Patti — who was ...

Moo Deng fans have something to sing... er, I mean cheer... about. That's because the Khao Kheow Open Zoo in Thailand where ...

Our friends at Zoosiana have some exciting news, two new pygmy hippos are now at home in Broussard, Louisiana. If you've been ...