Ai Project: A Retrospective of 25 Years Research on Chimpanzee Intelligence

  • Tetsuro Matsuzawa
Part of the Developments in Primatology: Progress and Prospects book series (DIPR)


In November 1977, a one-year-old female chimpanzee arrived at the Primate Research Institute of Kyoto University (KUPRI), Japan. She was wild-born, probably in Sierra Leone, West Africa, and was purchased through an animal dealer. Importing wild-born chimpanzees was still legal at the time, as Japan only ratified the Convention of International Trade in Endangered Species (CITES) four years later, in 1980. In the 1970s, Japan imported more than 100 wild-born chimpanzees, mainly for biomedical research of Hepatitis B. This infant chimpanzee was one of them. However, instead of being sent to the biomedical facilities, she was sent to KUPRI, where she was to become the first subject of an ape-language research project in the country.


Nonhuman Primate Stone Tool Comparative Psychology Wild Chimpanzee Female Chimpanzee 
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© Springer Science+Business Media New York 2004

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  • Tetsuro Matsuzawa

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