Female mammals have long thought to be born with all the eggs they would ever have, but new research is challenging that consensus ...

Female fertility depends on the successful growth and maturation of eggs (oocytes) within ovarian follicles. Within these ...

The court upheld state laws in West Virginia and Idaho barring the participation of transgender female athletes from girls’ ...

A research team from National Taiwan University and the University of Oslo analyzed data on more than 1.3 million children across two countries, finding that an earlier European safety warning for ...