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In the animal kingdom, a male's vocalizations are sometimes are tied to actual physical strength. Human men turn out to fit that phenomenon perfectly.
* The sound of a man's voice reveals his upper body strength and fighting ability.
* The findings put men on vocal par with many other animals whose calls also directly communicate body strength.
* Men's voices contain such information because ancestrally, men were more likely to engage in aggression.
A quick phone call to dad, or any other man, is far more revealing than previously thought, since new research has just determined that a human male's voice reveals his upper body strength, fighting ability, overall health, age, and emotional state.
Just hearing the sound of a man's voice, no matter what he is saying, communicates all of this information and more, according to the study, published in the latest Proceedings of the Royal Society B.
The findings put men on vocal par with red deer, common loons, baboons, croaking gourami fish, owls and other animals whose calls also directly communicate body strength and fighting ability.
"Ancestrally, a man's fighting ability would have been much more important to know as archaeological and anthropological evidence indicates that men were much more likely to engage in aggression than women were," Aaron Sell, lead author of the paper, told Discovery News.
"For that reason, it's very important to know how formidable a man is," added Sell, a researcher in the Center for Evolutionary Psychology at the University of California, Santa Barbara.
Sell and his colleagues took body and strength measurements from men and women belonging to four distinct populations: the Tsimane of Bolivia, Andean herder-horticulturalists, and U.S. and Romanian college students.
Each participant was asked to do things such as flex their biceps, which were measured, use a handgrip, and press a chest-strength muscle tester. The individuals also provided their fighting history, mentioning how many fights they had been in over the last four years.
Originally posted by Pharyax
Then how is was Mike Tyson so tough, yet sounded like a girl?
He get kicked in his goods or something?