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Thursday, July 24, 2008 |
Thursday, July 24, 2008 |
Photo: Orangutans "Play Charades" to Communicate With PeopleThese apes were part of a new study of orangutan behavior that shows that captive animals "play charades" to communicate with their human helpers. Photograph by Erica Cartmill
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ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAY |
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