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Genius Chimpanzee Ai Dies at Age 49, Primate Known for Enthusiastic Role in Research on Learning, Memory

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The Yomiui Shimbun

13:28 JST, January 11, 2026

OSAKA — Ai, known as a genius chimpanzee for her pivotal role in research exploring language evolution, died Friday at the age of 49, the Center for the Evolutionary Origins of Human Behavior, Kyoto University, has said.

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