Koko: A Talking Gorilla [2/8]

A documentary about Koko the talking gorilla from 1978. Shows Koko working with Dr Francine 'Penny' Patterson, her sign language ability and understanding.

More Information:
► http://www.koko.org/index.php
► http://en.wikipedia.org/wiki/Koko_%28...
► http://en.wikipedia.org/wiki/Koko:_A_...
► http://www.imdb.com/title/tt0076097/