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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.
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.
General Note
Originally published: New York : Knopf, 1995. (Eyewitness books).
Includes index.