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Wild chimpanzees demonstrate rare instance of division and collective violence
April 09, 2026
TUCSON, Arizona, April 9 -- The University of Arizona posted the following news release:

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Wild chimpanzees demonstrate rare instance of division and collective violence

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The largest group of wild chimpanzees known to scientists has permanently split into warring factions. In a study published in Science, an international team of researchers, including a University of Arizona primatologist, report this rare event, building on three decades . . .

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