Scientists stunned as chimpanzees turn on friends in killing spree

Researchers have documented a rare violent split among the Ngogo chimpanzees in Uganda, with one faction attacking another and resulting in 28 deaths. Lead author Aaron Sandel noted the violence marks the first evidence of a stable chimpanzee group fracturing into lethal rivalries. Factors contributing to this conflict include competition for resources and a change in alpha leadership.

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Summary by Glance · Original reporting by Brisbane Times