I am human, hear me roar: Judging formidability from human vocalizations

Many animals use vocalizations to judge one another's size and physical formidability when in competition for mates or other resources. Now, researchers have found that humans can use nonverbal vocal cues, including aggressive roars, in a similar way.

from Top Health News -- ScienceDaily https://ift.tt/2tCPMvg

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