A documentary that follows Dr. Penny Patterson's current scientific study of Koko, a gorilla who communicates through American Sign Language.
Penny Patterson
Koko
Saul Kitchener
Carl Pribram
Roger Fouts
Score: 7.4
Score: 0.0
Score: 5.8
Score: 0.0
Score: 7.2
Score: 0.0
Score: 7.0
Score: 6.4
