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Arizona State University
Monkey see, monkey kill: The evolutionary roots of lethal combat
Monkey see, monkey kill: The evolutionary roots of lethal combat

The killings are often swift and brutal: An overwhelming force of chimpanzees will pin their fellow primate to the ground as dozens of attackers commence to biting, punching, kicking and ripping at the victim's body.  "They'll tear off pieces of the body, often the genitalia, and sometimes they'll rip the throat out. It's really horrific, the sorts of damage they do," said Michael Wilson, a University of Minnesota evolutionary anthropologist who has studied chimps in the wild. Researchers have long debated the reasons as to why our closest living animal cousins would exercise deadly violence against their own kind -- including many helpless infants. ...

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