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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.
Directed by Barbet Schroeder
Penny Patterson
Herself
Koko
Herself
Saul Kitchener
Himself - Director Emeritus, San Francisco Zoo
Carl Pribram
Himself - Professor of Neuroscience
Roger Fouts
Himself
Checkpoint Zoo
2024
4watch
