Ollie, a chimpanzee that has been taught to use American Sign Language, at the University of Oklahoma's Institute of Primate Studies. Ollie was the half-brother of another chimpanzee that was the object of language acquisition research, Nim Chimpsky, of Columbia University's Project Nim. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kuklin, Susan |
Bildgröße: | 4166 px × 2790 px |
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