A documentary that follows Dr. Penny Patterson's current scientific study of Koko, a gorilla who communicates through American Sign Language.
Penny Patterson
Herself
Koko
Saul Kitchener
Himself - Director Emeritus, San Francisco Zoo
Carl Pribram
Himself - Professor of Neuroscience
Roger Fouts
Himself
2014 • 7.5 ★
2019 • 7.4 ★
2016 • 7.4 ★
2016 • 6.9 ★
2007 • 7.7 ★