In a new twist on the age-old question of nature vs. nurture, Johns Hopkins scientists following 14 boys who were surgically altered as infants and raised as girls found that the majority grew up identifying strongly as males. Some of the patients spontaneously took on boys' names and began wearing male clothing before anyone told them the circumstances of their births - while others decided to live as boys once they found out. Warning against sweeping conclusions about the foundations of gender identity, the researchers noted that the study was limited to boys who were "assigned" to the female gender...