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Koko - The Gorilla Who Talks

Trailer

Preview | 30s

In 1971 Penny Patterson began teaching sign language to a gorilla named Koko, unaware that this relationship would define both their lives. Over 40 years on, now internationally famous, Koko continues to redraw the line between people and animals.

Aired: 08/02/16

Rating: TV-G

Video has closed captioning.