How Unborn Turtles Choose To Become Male or Female

While in their eggs, turtle embryos move around to find the perfect spot that's not too hot, not too cold, but just right. And because temperature determines what sex unborn turtles become, the embryos might be able to "choose" their own sex by staying in cooler or warmer areas of the egg, according to a new study. » 6/12/13 3:20pm 6/12/13 3:20pm