In recent years, scientists have shown that chimpanzees favor certain peers by picking whom they prefer to groom and ...

Friendship, it turns out, may run deeper in chimpanzees than a simple preference for grooming partners. A new study from the University of California, Berkeley has found that chimpanzees steal less ...

Young chimpanzees learn their communication style from their mother and maternal relatives, but show little similarity to the communication behavior of their father and paternal relatives, according ...

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 ...

The riskiest behavior in humans peaks in adolescence. Researchers from the University of Michigan and James Madison University expected to find risky behavior to peak in adolescence in a study of ...

Scientists have identified dozens of previously overlooked cultural behaviors in wild chimpanzees, suggesting that the great ape’s culture extends far beyond complex skills like tool use. In a single ...

Chimpanzee and bonobo mothers have been observed carrying their deceased infants on their backs for years. Why does this ...

Add Yahoo as a preferred source to see more of our stories on Google. Val, an adult male chimpanzee, demonstrates the 'grass-in-ear' behavior. - Jake Brooker/Chimfunshi Wildlife Orphanage Trust ...