High-resolution 3D womb model gives insights into embryo implantation, infertility, and signals between embryo and mother, ...

Doctors in Brazil discover and confirm that a woman has blood with male chromosomes, a rare case of human chimerism.

Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

Recent research highlights that for fertility and aging, the egg may be the leading lady, but she needs her supporting cast.

In trying to find out more about the supposed shield generator around the Upside Down, Dustin discovers a notebook from Dr.