Howler monkeys are relatively small primates known for their incredibly loud, low-frequency roars that sound as if they come from a much larger creature. This is useful in the animal kingdom because sounding big can deter predators and may discourage rivals before they get a glimpse of the caller’s true size. But what do these noises say to members of their own species?
Howler monkey roars exaggerate body size but are truthful to other howlers
The Owl Picks
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