AMES, Iowa – Shocking is one word Jill Pruetz uses to describe the behavior she witnessed after a chimp was killed at her research site in Fongoli, Senegal. The fact that chimps would kill a member of ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Are helicopter parents the reason kids don’t turn rebellious until their teenage years, when they finally get some autonomy? Very ...

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 ...

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 ...

A young chimp hangs from a branch with its mother's hand nearby at the Ngogo Chimpanzee Project at Kibale National Park in Uganda. ANN ARBOR—If you've ever spent time with a toddler, you might be ...