Koko the Gorilla Dies in California

(From BBC News)

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 Paterson.

She adopted and named pets, including a kitten she called All Ball.

The gorilla, who was said to have an IQ of between 75 and 95, could understand 2,000 words of spoken English. The average IQ for humans on many tests is 100, and most people score somewhere between 85 and 115.

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