From Discovery New by Jennifer Viegas
Man’s Voice Reveals His Fighting Ability.
Well this is a pretty cool and interesting article. Obviously we share a lot more traits with our animal brothers and sisters than we even knew.
“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.
The participants next spoke a certain sentence in their native language that was recorded. The American students, for example, were instructed to say, “When the sunlight strikes raindrops in the air, they act like a prism and form a rainbow.” This sentence includes every sound in the English language.
Undergraduates from UCSB rated the various voices on physical strength, height and weight. Their predictions were correct nearly every time for men, but not for women, even though many didn’t even understand the language of the speakers. Both men and women listeners, however, were equally skilled at assessing the male voices.
“Information about male formidability would have been important for both sexes over evolutionary time,” said Sell. “Both men and women would have benefitted from knowing who would likely win fights in order to make prudential alliances and for other reasons. Men would need this information to regulate their own fighting behavior. Women would also need this information in order to make effective mate choices.”