Koko's Silverback Society

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When you make a tax-deductible donation of $1,000 or more you become a member of Koko's Silverback Society, the Gorilla Foundation's leadership circle. As a Silverback Society member, you will have a direct influence on strategic decisions that affect Koko's legacy and the future of great apes.

You will also be able to communicate directly with Dr. Penny Patterson (The Gorilla Foundation's founder and Koko's mentor) as well as other members of our governing and advisory Boards.

Join Koko's Silverback Society today and become a key partner in the Gorilla Foundation's future: 

$1000 donation    $5000 donation   $100 donation
$25000 donation

For more information, contact us at [email protected] or call 1 (800) 634-6273 



Contact Us



The Gorilla Foundation / Koko.org
1733 Woodside Rd., Suite 330
Redwood City, CA, 94061
1-800-ME-GO-APE (634-6273)

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Why become a member?

Our mission is to learn about gorillas by communicating with them, and apply our knowledge to advance great ape conservation, education, care and empathy.

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