Between 1998 and 2009, John Mitani witnessed 18 murders firsthand, and found circumstantial evidence for three more. But no police were ever called, for these killers were all chimpanzees, from the ...

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, ...

For years, anthropologists have watched wild chimpanzees "go ape" and attack each other in coordinated assaults. But until now, scientists were unsure whether interactions with humans had brought on ...

New research led by UCLA and the University of Michigan has shown that chimp communities that kill their neighbors to gain territory also gain reproductive advantages. // Chimps in the wild engage in ...

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 ...