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A documentary that follows Dr. Penny Patterson's current scientific study of Koko, a gorilla who communicates through American Sign Language.
October 11, 1978
Les Films du Losange, INA
5 people
Penny Patterson
Herself
Acting

Koko
Herself
Acting
Saul Kitchener
Himself - Director Emeritus, San Francisco Zoo
Acting
Carl Pribram
Himself - Professor of Neuroscience
Acting
Roger Fouts
Himself
Acting

2025
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