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Chimpanzees turn on friends in killing spree, leaving scientists baffled

Large chimpanzee community splits in two, with one faction killing 28 members of rival group Grouped from 2 articles across 2 sources.

2 reports2 sourcesApr 9, 2026, 6:25 PM
FilterThe Globe and Mail
Clustered coverageThe Globe and Mail, The Straits Times
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The Globe and MailApr 9, 2026, 6:25 PM

Chimpanzees turn on friends in killing spree, leaving scientists baffled

Large chimpanzee community splits in two, with one faction killing 28 members of rival group

The Straits TimesApr 9, 2026, 6:06 PM

Scientists stunned as chimpanzees turn on friends in killing spree

April 9 - For two decades, researchers observed members of the Ngogo chimpanzee group of Kibale National Park in Uganda spend their days eating fruits and leaves, resting, traveling and grooming in their tropical rainforest abode. But this stable community then fractured and descended into years of deadly violence.

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