Because it is. In developing countries, ultrasounds are often used to determine whether a couple will have a girl or a boy, and, if it’s a girl, she’s often aborted. People in developing nations want boys, especially when the number of children they can have is limited. You probably already knew that! I already knew that, but until reading this interview on Salon with Mara Hvistendahl (the author of “Unnatural Selection: Choosing Boys Over Girls, and the Consequences of a World Full of Men”) I’d never considered some of the ramifications. Here are some of the potential consequences for women.