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 ...

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, ...

Nothing brings a group of primates together, humans included, quite like a threat from outside. Bonobos are unique among primates because they do not kill other bonobos, even during conflicts with ...

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