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Editorial Images

Penny Patterson with Koko the Gorilla

(Original Caption) "You key there me cookie." With that sign language, Koko the gorilla tells her mentor; 28-year old graduate student Penny Patterson, to get the key, open the closet and get a goodie out of the cookie jar. Here, Koko gives the "to listen" sign in sign-language, telling Penny she wants to listen to the phone. She doesn't know the real phone sign yet.
Penny Patterson with Koko the Gorilla
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