Inside Uganda’s chimpanzee civil war: How a peaceful community split into deadly rival groups The Times of IndiaChimpanzees’ bloody ‘civil war’ may offer insight into human conflict The TimesTwo hundred chimpanzees are embroiled in a ‘civil war’ Scientific AmericanThese Chimps Began the Bloodiest ‘War’ on Record. No One Knows Why. The New York TimesScientists stunned as chimpanzees turn on friends in killing spree Reuters
