CHICAGO (WLS) -- Animal researchers have known for some time that chimpanzees are very much like us. But a new study shows that just as we go to war sometimes to protect our territory and way of life, ...

Chimpanzees living in a sanctuary in Africa have developed a “fashion trend” for dangling blades of grass or sticks from their ear holes and their behinds, a new study shows. In 2010, researchers ...

Chimpanzees show physical risk taking peaks in infancy, not adolescence, highlighting the powerful role of supervision in shaping behavior.

Great apes share human-like social circles, but chimpanzees and bonobos differ in how selectively they maintain close social ...

Despite being one of the most cooperative species on the planet, humans routinely fail to manage shared resources sustainably ...