Koko (gorilla) - Wikipedia, the free encyclopedia

Koko is one of the few non-humans known to keep a pet. Researchers at The Gorilla Foundation said that Koko asked for a cat for Christmas in 1983. Ron Cohn, a biologist with the foundation, explained to the Los Angeles Times that when she was given a lifelike stuffed animal, she was less than satisfied. She did not play with it and continued to sign “sad.” So on her birthday in July 1984, she was able to choose a kitten from a litter. Koko selected a gray male Manx from a litter of abandoned kittens and named him “All Ball”. Penny Patterson, who had custody of Koko and who had organized The Gorilla Foundation, wrote that Koko cared for the kitten as if it were a baby gorilla. Researchers said that she tried to nurse All Ball and was very gentle and loving. They believed that Koko’s nurturing of the kitten and the skills she gained through playing with dolls would be helpful in Koko’s learning how to nurture an offspring.

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