Gorilla (Eyewitness Books)
Reveals why howler monkeys erupt into song at sunrise, what it means when a mandrill yawns, and other details about the behavior, family life, and intelligence of gorillas and other primates
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Photographed in full color . Take a close-up look at the amazing behavior of our nearest relatives. Learn why howler monkeys burst into song at dawn, what it really means when a mandrill yawns, and why the biggest primate is a vegetarian.
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