Western males attack Basie in 2019. (Aaron Sandel via SWNS)
By Talker
Chimps are at war — with each other.
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Central male Morton (left) and Western male Garrison (right). (John Mitani via SWNS)
By Talker
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Prior to the permanent fission, chimpanzees from different social clusters interacted. (Aaron Sandel via SWNS)
By Talker
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The findings "challenge" the hypothesis that human warfare is driven primarily by cultural markers of group identity. (Aaron Sandel via SWNS)
By Talker
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The research team estimate such "chimp wars" occur only once every 500 years. (Aaron Sandel via SWNS)
By Talker
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The only previously reported case took place in the 1970s at Gombe, Tanzania, during Jane Goodall's long-term study. (Aaron Sandel via SWNS)
By Talker
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