Wild chimpanzees recorded waging ‘civil war’ with coordinated attacks between two groups

New study describes what may be the first case of a unified community of chimps, in Uganda, turning on itself On a June day in 2015, primatologist Aaron Sandel was quietly observing a small cluster of the Ngogo chimpanzee group in Uganda’s Kibale national park when he noticed something strange. As other members of the chimpanzees’ wider group moved closer through the forest, the chimpanzees in fro