In terms of speed and movement, chimps have the upper hand. The bite force of chimpanzees is 1,300 PSI, while scientists estimate that our jaws can deliver 162 PSI. A chimpanzee would have a ...

New research on the rhythmic drumming and complex calls of chimpanzees could point scientists to the origins of language.

“Often this gesture is used to request food or be friendly. Sometimes the response from the other chimpanzee is to shake hands.” Researchers define a gesture’s meaning by the way its recipient ...

Usually, these exchanges had two parts: One chimpanzee might tap the another's hand, and then the other taps back like in this video. But sometimes the exchanges had up to seven parts, which was ...

When Lindsay wants to climb on her mother’s back and travel, she puts one hand over Beryl’s eye — a gesture that no other chimpanzee is known to make. It’s their own private sign.