APDEV 1272 Juvenile chimp throwing, Gombe, Tanzania. DeVore Juvenile chimp throwing, Gombe, Tanzania. DeVore
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| APDEV 1273 Juvenile chimp waves branch, Gombe, Tanzania. DeVore Juvenile chimp waves branch, Gombe, Tanzania. DeVore
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| APDEV 1271 Juvenile chimp begins to throw rock, Gombe, Tanzania. DeVore Juvenile chimp begins to throw rock, Gombe, Tanzania. DeVore
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| APDEV 1281 Young chimp reaches holding onto branches using hands and foot, Gombe Stream Reserve, Tanzania. DeVore Young chimp reaches holding onto branches using hands and foot, Gombe Stream Reserve, Tanzania. DeVore
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