Lindsay Beyerstein joins the debate about prenatal dex and lesbianism:
If you wanted to be a crackpot about it, you could just as easily argue that dex is a conspiracy to turn boys gay. Prenatal dex makes male rats more receptive to being mounted by other males. Some studies have shown that maternal stress during pregnancy predisposes male offspring to homosexuality. Some researchers think this effect could be caused by steroids like dex. Dreger and Dan Savage may not know the literature, but you can be sure that endocrinologists are well aware of these theories.