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Jack is a three-year-old chimpanzee who has been the subject of a long-term experiment by Dr. Kendall, a researcher who been teaching Jack to communicate through sign language.
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Jack is a three-year-old chimpanzee who has been the subject of a long-term experiment by Dr. Kendall, a researcher who been teaching Jack to communicate through sign language.
Results 1 - 1 of 1