Chimpanzee kill4/5/2023 ![]() ![]() ![]() At other sites, deforestation might play a role-and is being blamed for recent wild chimp attacks on humans in the Democratic Republic of the Congo.) For example, Goodall initially lured chimpanzees to her study site with bananas, and the provisioning might have disrupted natural relationships among the chimp groups. Brian Ferguson of Rutgers University, however, argue that chimpanzee violence is actually abnormal behavior that’s a consequence of human interference. As a result, adult males in a group tend to be related, and the ties of kinship help them forge strong bonds and coalitions that work together to patrol the boundaries of their territory. Once females come of age, so to speak, they leave their group to find a new community, while males stay where they were born. Throughout the day, they break into smaller, fluid parties with ever-changing memberships, probably because their food is spread out in such a way that a large group’s needs can’t be satisfied by the same patch of grub. ![]() Group members don’t hang around together all the time. Spider monkey, chimpanzee, and-debatably-traditional human societies are all examples of fission-fusion social systems. Instead, similar qualities in their social lives may favor violence. But it’s hard to make the case that spider monkeys, chimps, and humans all engage in violent behavior because of common ancestry, given that spider monkeys are separated from chimpanzees and humans by about 35 million years of evolutionary history and plenty of peaceable primate species. These spider-monkey raids sound a lot like chimpanzee attacks. ![]()
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