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 ...

“One of the main findings is that all chimpanzee kids are risky, and that infant and juvenile chimpanzees are even more risky ...

The Ngogo chimpanzees of Uganda's Kibale National Park have long been known for violent clashes with neighboring groups, often resulting in deaths—a phenomenon sometimes described as "chimpanzee ...

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

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

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 ...

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, ...

Psychologists from Durham University, UK, have observed the behavior of 90 sanctuary-living apes to establish whether bonobos were more likely than chimpanzees to comfort others in distress. The study ...

Chimpanzees and bonobos are among the closest relatives of humans. They share more than 98% of our DNA. Yet, these primates ...