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Primatology

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Chimps Weigh Evidence and Change Their Minds, Science Study Finds

Controlled box tasks with graded cues produced choices that matched formal belief‑revision models.

Study Finds Wild Chimps Consume About One Human Drink’s Worth of Ethanol Daily

Chimpanzees Catch Yawns From Android Head

Capuchin Monkeys on Jicarón Island Abduct Howler Infants in Unprecedented Behavior