Koko Yawns

Koko Yawns

Posted On: March 12, 2010
Date Taken: February 28, 2002

Photographer: Ron Cohn

What a mouth! Sometimes, repeated yawning can indicate stress in gorillas. Here, however, Koko is just preparing for an afternoon nap. She frequently invites her caregivers to nap along side her.

Koko Yawns

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