It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...

A Vermont elementary school says it will no longer use the words “male” or “female” when teaching fifth-grade students about puberty and human reproductive systems. Families of students at Founders ...

Within the next couple of decades, a new generation of contraceptives could hit the American market. One, a pill that prevents certain cells from accessing vitamin A, might be able to limit fertility ...