Why Spider Monkeys Only Have Four Fingers

Smithsonian Channel
Smithsonian Channel
124.2 هزار بار بازدید - 7 سال پیش - Unlike virtually every other primate,
Unlike virtually every other primate, spider monkeys have no thumbs, which could snag on the branches. Instead, their four long fingers form a perfect hook to help them swing on branches.

From the Series: Amazing Monkeys: The Americas http://bit.ly/2y7TQ5Y
7 سال پیش در تاریخ 1396/09/28 منتشر شده است.
124,263 بـار بازدید شده
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