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  • Koko's Kittens Play all

    Koko has has a number of kitten companions through the years. Here are some examples.
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  • Koko Signs Play all

    Learn to sign with Koko with Dr. Penny Patterson demonstrating how the gorillas make the sign, and assistant caregiver Darlene demonstrating the conventional ASL version (which is often identical).
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  • Uploads Play all

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