College of LAS « Illinois

College and Campus Trivia

gorilla and Penny Patterson

LAS alumna Penny Patterson has worked with this famous gorilla for more than 30 years in one of the longest interspecies communication studies ever conducted.

Who is this famous gorilla?

Answer: Koko

Patterson, who studied psychology, taught Koko to sign more than 1,000 words. The 37-year-old Koko also understands approximately 2,000 words of spoken English, and has a tested IQ of between 70 and 95, slightly below the average human intelligence of 100.

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