... irth of the F emale B rain glanced at their mothers’ faces. They frequently touched the forbid-den toy cow, even though their mothers shouted, “No!” The one-year-old boys, driven by their testosterone-formed ... morning the sisters climbed on each other’s dressers to get to the clothes hanging in their closets. One girl had a pink two-piece outfit, and the other had a green two-piece outfit. Their mother ... emotional expression. They take meaning about themselves from a look, a touch, every reaction from the people they come into contact with. From these cues they discover whether they are worthy,...