Chimpanzees can change their minds when the facts no longer support their previous beliefs – a rational level of thinking that was once considered uniquely human. In a series of experiments designed ...

A recent study performed on chimpanzees demonstrates that chimpanzees possess cognitive flexibility similar to that of humans. When circumstances or evidence change, chimps appear to do the thing ...

Chimpanzees are some of the smartest creatures on Earth, sharing about 98% of their DNA with humans. Their brains work in ways that constantly surprise scientists, showing abilities we once thought ...

She died of natural causes in California while on a U.S. speaking tour, the institute said. "Her discoveries as an ethologist revolutionized science, and she was a tireless advocate for the protection ...