Why Do Howler Monkeys Scream?

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Howler monkeys are new world monkeys that live in the rainforests of Central and South America

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They are among the largest primates in the neotropics, growing up to 36 inches tall and weighing 15 to 30 pounds

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They have prehensile tails that they use to grab onto branches and move slowly through the trees

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Howler monkeys are most active during the day and sleep high in trees at night

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Howler monkeys have large hyoid bones that allow them to make loud howls to let others know where their territory is

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When multiple howlers call together, the din can be heard up to three miles away, especially at dawn or dusk

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Howler monkeys howl to maintain communication when they are spread out looking for food

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They are the loudest of all monkeys, and their howls can sound like a loud whooping bark or roar

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