Saturday, December 20, 2014

Koko-Love: Conversations with a Signing Gorilla by Dr. Francine Patterson, photos by Dr. Ronald H Cohn

In 1972 Dr. Francine Patterson began teaching American Sign Language to a 1-year-old gorilla named Koko. In the longest running animal language experiment to date, Koko spent 27 years developing a vocabulary of over 1,000 words.

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