Ai, chimpanzee known for cognitive research on counting and painting, dies at 49 in Japan
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Summary
Ai, a 49-year-old female chimpanzee renowned for her cognitive abilities including counting and painting, has died of old age and organ failure at Kyoto University's Center for the Evolutionary Origins of Human Behavior. Born in western Africa, Ai arrived at the Japanese institute in 1977 and was extensively studied for decades, contributing significantly to the understanding of primate cognition. She was surrounded by staff when she passed away on 9 January 2026.
Key quotes
· 3 pulledAi, a female chimpanzee famous for her cognitive skills has died at 49, according to the Japanese institute where she lived.
The Kyoto University's Center for the Evolutionary Origins of Human Behavior said Ai died on 9 January of old age and organ failure and that she was surrounded by staff when she died.
Ai was born in western Africa and arrived at
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