Chimp Peacemakers.

• Position: Primates - Brief article

Every school yard seems to have one--a peacemaker willing to jump in to prevent an argument from turning violent. It turns out, some chimps serve the same function in their societies. Scientists at the University of Zurich recently observed chimps in zoos in Switzerland, England, and the Netherlands. The policing chimps, who are usually influential older males or females, were able to break up fights simply by walking between chimps who were going at it. Such behavior appears to be a selfless...