Facts about Howler Monkey Vocalizations

1. 05

   Female and juvenile howler monkeys also vocalize, producing softer barks and calls that contribute to the chorus rather than remaining silent.

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2. 04

   Dawn is the most common time for howler monkey vocalizations, with troops typically calling at sunrise to establish territorial boundaries for the day.

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3. 03

   Howler monkey vocalizations serve a social function, with groups using calls to announce their presence and avoid costly physical confrontations with rival troops.

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4. 02

   Male howler monkeys produce their remarkably loud calls using an enlarged hyoid bone that acts as a resonating chamber in the throat.

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5. 01

   The calls of howler monkeys can be heard up to 3 miles away, making them among the loudest land animals on Earth.

   Howler Monkey VocalizationsJun 6sharebiologyacousticsprimates