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Fertility NewsAre Men With Deeper Voices More Fertile? - 09/27/2007 Men with deeper voices father more children, reported researchers from Harvard, McMaster, and Florida State University in a new study that appeared online this week in the journal Biology Letters. Researchers based their findings on a group of hunter-gathers in Tanzania called the Hazdaz. Hazdaz are interesting to study because they “don’t use any birth control methods, so they’re what we call a natural fertility population,” said Coren Apicella, the lead researcher from Harvard University. Researchers monitored the hunter-gathers for six months, and recorded the voices of both men and women between the ages of 18 and 55 saying “hujambo” the Swahili word for hello. They found that men with deeper voice had about two more kids than men with higher voices. Also children with deep voiced fathers tended to survive longer. “The results of this study have implications for the evolution of vocal dimorphism,” says Apicella. Although we don’t know why exactly men with deeper voices have more children, but it could mean they either: went to puberty earlier, procreated earlier, attracted more mates, or had healthier wives. Source: The Money Times Fertility News Archive |
