The main differences between a monkey and a chimpanzee include their family type ... and forward-facing eyes, among other ...

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.

“We will continue exploring why the chimpanzees care about watching eyes and whether the same effects exist in other animal species as well.” The audience effect can be seen in human ...

Lindsay’s hand-over-eye signal is entirely unique to her and her mother. This discovery adds a new layer to the ongoing debate about the roots of human language. While chimpanzee gestures don ...

Dricus du Plessis is set to defend his UFC middleweight title next weekend at UFC 312 against Sean Strickland.