Chimpanzees have been the focus of much zoo-based research, including research on their welfare. Most people—researchers, zoo workers and the public alike—assume that providing animals with ...

For instance, Yuhui, the internet-famous chimpanzee, eagerly grabbed the red envelope, tore it open and joyfully savored the red dates, walnuts and peanuts inside. The park said this New Year's ...

A 55-year-old chimpanzee died after a health decline at a Michigan zoo. Screengrab from John Ball Zoo Facebook post A chimpanzee’s “sweet faces” graced the exhibits at a Michigan zoo for ...