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Koko - The Gorilla Who Talks

In 1971, Penny Patterson, a graduate student at Stanford University, met Koko, a new-born gorilla in San Francisco Zoo. Penny had grown up wanting to communicate with animals and decided to teach Koko sign language in the hope of finally crossing the boundary between animals and humans.

Koko - The Gorilla Who Talks airs Wednesday, March 6 at 7 p.m.


No episodes are available for online viewing.
Explore the story of Penny Patterson and Koko the gorilla.