Koko the gorilla, who is said to have been able to communicate by using more than 1,000 hand signs, has died in California at the age of 46.
Instructors taught her a version of American Sign Language and say she used it to convey thoughts and feelings.
The abilities of the gorilla, who also apparently understood some spoken English, were documented by animal psychologist Francine Patterson.
She adopted and named pets, including a kitten she called All Ball.
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A Chilean tourist survived for nine days while lost in a dense expanse of Bolivian rainforest — thanks to a troop of hero monkeys who “dropped him fruit and led him to shelter and water every day,” the man claimed.
