Girls are feeding boys sexUploader: Gregory 24 days ago Subscribe 4057
Even beyond fat and protein, other milk components might vary in humans, says Katie Hinde, an assistant professor in human evolutionary biology at Harvard University. Mother's milk may be the first food, but it is not created equal. It was subsequently corrected by the researchers in September In those societies, a son can grow to be a strong, popular male with many wives and children, or he can end up with neither. Marissa is a freelance science journalist in Bozeman, Montana. Researchers at Michigan State University and other institutions found that among 72 mothers in rural Kenya, women with sons generally gave richer milk 2. Conversely, poor parents should not heavily invest in sons because it is unlikely to pay off—their offspring start at the bottom of the socioeconomic ladder.