Though chimpanzees and gorillas often coexist in the same areas, interactions of any kind are thought to be rare – those that ...

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 ...

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 ...

For wounded chimpanzees, help sometimes comes in the form of first aid — care rendered not by humans but by other chimps. New research reveals the nature and prevalence of these rarely witnessed ...

The female chimp was subdued, but the male chimp was killed. July 13, 2012— -- Two powerful, adult chimpanzees escaped a Las Vegas backyard and rampaged through a neighborhood, leaping over ...

Al and Kamaka, two old friends who are both in their 50s, are experiencing a whole new world. Part of what's novel: females. "Right off the bat, they were just enamored with the ladies in the group," ...