Outbreaks of violence between chimpanzees have sparked fierce debate online about the origins of war in humans

National Affairs Editor

Published

April 23, 2026 6:30AM (EDT)

A Congolese Army soldier holds a baby chimpanzee while manning a checkpoint in the entrance to the provincial capital of Goma, Congo on November 6, 2008. (Photo by Yasuyoshi Chiba/AFP via Getty Images)