The sex of many turtles, crocodilians, and other reptiles is determined by the temperature at which their eggs incubate.

Male infertility is often caused by issues that go unnoticed or are rarely discussed. This article examines some lesser-known ...

Even as many scholars and pundits deny the differences between the sexes and vastly expand the concept of gender, society is increasingly dividing along these clear and simple lines. Mountains of data ...

After controlling shareholders failed to take Grindr private, and controversies over data and the banning of the phrase “No ...

In men over 40, erectile dysfunction is usually caused by narrowing of the arteries that bring blood to the penis. But in men ...