Women Make Dads Out Of Dudes With Deep Voices

Men with deeper, more "masculine" voices have more children than those with higher-pitched voices, according to a report from Biology Letters. Researchers from Harvard conducted a study on the Hazda, a group of hunter-gatherers in Tanzania, because the Hadza live much like our ancestors did, without the trappings of… » 9/26/07 10:30am 9/26/07 10:30am