koko the gorilla who talks to people.

a documentary that explores the only taking gorilla in the world .koko and her relationship with animal psychologist penny patterson ,project koko started life as a phd project to teach a baby gorilla sign language but a intense bond was formed between pupil and teacher .now together now for 40 years ,in this programme you can watch 2,000 hours of footage charting koko s best moments which includes the battle to prevent the gorilla being taken back too the zoo  in which she was born.