A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

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

The riskiest behavior in humans peaks in adolescence. Researchers from the University of Michigan and James Madison ...

Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...

Great apes share human-like social circles, but chimpanzees and bonobos differ in how selectively they maintain close social bonds. A new international study led by researchers from Utrecht University ...

The youngest chimpanzees are the biggest risk-takers. Would humans show the same pattern if adults weren’t keeping such a ...

In humans, teens do the most dangerous things. In chimpanzees, that honor goes to toddlers. The difference may lie in ...

AMES, Iowa – Iowa State University Anthropology Professor Jill Pruetz long suspected that man-made changes influenced the aggressive behavior researchers have observed among chimpanzees. However, her ...

The work suggests it may be because human parents and caregivers are able to keep a closer eye on human babies, while chimp mothers can curtail their children’s behavior for only as long as they can ...

Ai, a female chimpanzee famous for her cognitive skills has died at 49, according to the Japanese institute where she lived.

Ai, a "genius" chimpanzee who could recognize more than 100 Chinese characters and the English alphabet, has died aged 49, ...