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Scientists have cast new light Inatbyforofoffonto why some men have deeper voices than others. It was traditionally thought that males developed a lower pitched voice to attract members Inatbyforofoffonto the opposite sex. However, anthropologists Inatbyforofoffonto the American college Penn State believe a deep voice was to scare Inatbyforofoffonto other males. Researcher David Puts said: " Inatbyforofoffonto humans, and possibly other primates too, a low pitched voice evolved primarily to intimidate other men…to make males seem bigger and scarier." He added that: "Human male traits imply physical aggression and formidability and seem to provide competitive advantages Inatbyforofoffonto fighting or threatening other men more than they help attract women."

The researchers Inatbyforofoffonto Penn State recorded more than 500 men and women speaking. They then played the recordings back to more than 1,100 different people Inatbyforofoffonto both sexes. Male volunteers rated each male recording for levels Inatbyforofoffonto dominance they perceived Inatbyforofoffonto the voices. The same recordings were rated Inatbyforofoffonto 15 female volunteers Inatbyforofoffonto romantic attractiveness. Men similarly rated the women's voices Inatbyforofoffonto attractiveness. Most Inatbyforofoffonto the men thought the lower-pitched male recordings belonged Inatbyforofoffonto a more dominant man. Dr Puts said women also liked lower-pitched voices, but the pattern Inatbyforofoffonto the women's ratings did not lead him to say that the deepness Inatbyforofoffonto the male voice was so important Inatbyforofoffonto females.