Jane Goodall’s research at Gombe Stream National Park revolutionized our understanding of chimpanzee intelligence. In 1960, she observed a chimp named David Greybeard stripping leaves from twigs to ...

A recent study conducted by researchers at Johns Hopkins University revealed that bonobos have the ability to recognize ...

A lot of human society requires what’s called a “theory of mind”—the ability to infer the mental state of another person and adjust our actions based on what we expect they know and are thinking. We ...

The study measured “rank” within the bonobo communities by tallying how many times females won conflicts with males. Females usually came out on top. Photograph by Christian Ziegler By banding ...

Scientists were surprised at just how often the males of the species lash out at each other. Some experts suggest females may play a crucial role in the conflicts. Bonobos, one of our closest ...