One specific group of chimpanzees in Nigeria has been studied by scientists because of something unique having happened to it ...

HBO's "Chimp Crazy," a docuseries premiering Sunday from "Tiger King" director Eric Goode, is less about the animals in question than the people who own them.

Colony Director Michelle Reininger, like all staff at Chimp Haven, knows each of the chimps by name. Reininger said, for her, their personalities set these animals apart from any other species.

In the study, the team collected data on chimpanzee “conversations” across five wild communities in East Africa. Their dataset represented more than 8,500 gestures for 252 individual chimpanzees.

The animal rights organization was alerted to Tonka’s whereabouts by the “Chimp Crazy” producers, who feared Tonia Haddix was going to euthanize the ape. Haddix told the cameras that her ...