Each person is a mosaic of sex-related and postpubertal biological traits that vary in their degree of femaleness and maleness.

In vitro fertilization is one of the most effective fertility treatments available, but the process itself often gets reduced ...

Egg freezing is becoming an increasingly popular option for women who want to have more flexibility around when they start a family. The process begins with a medical evaluation, which includes blood ...

Every tomato begins with a flower. But before a fruit can grow, an intricate sequence of events must happen in perfect order.

This updated review assessed special solutions (culture media) that are important for helping embryos develop in assisted reproduction technology (ART) treatments used for women who cannot get ...

Elizabeth Wood wants the world to know that at 44 she gave birth to a daughter, defying the pregnancy odds for many women her age. Today, Wood's 17-month-old daughter, Hannah, is as healthy as can be ...

Millions of sperm do not always compete alone—some species send them into action as coordinated teams. A sweeping ...