Documentary-maker Barbet Schroeder followed Dr Francine 'Penny' Patterson, a zoologist, who controversially believed that her lowland gorilla Koko had mastered the use of sign language.
According to Patterson, Koko - the inspiration for Michael Crichton's brainy ape in Congo - was familiar with American sign language by the time she was six and eventually learned several hundred words, plus the ability to use a rudamentary computer to "speak" aloud.
However, what astounds is Patterson's 30-year dedication to her task, a vocation that demands she spend practically every waking hour with her simian charge.
KOKO: A TALKING GORILLA (1978) KOKO: A TALKING GORILLA (1978) Reviewed by on November 06, 2017 Rating: 5
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