Poor Moms Invest More in Their Daughters, Rich Moms Invest More in…

You might not think that a mother's breastmilk would vary much based on the sex of her offspring, but you would be wrong. It turns out a new study has found that when mothers in Kenya were poor, they produced fattier breast milk for their girls than they did for their boys. The roots of this research can be traced… » 6/24/12 9:45pm 6/24/12 9:45pm