When it comes to sperm, only the fiercest swimmers can wriggle past the bottlenecks of the female reproductive tract, new research shows. The study could help one day improve tests for male fertility.

The latest feat in organ-on-a-chip technology is a model female reproductive system that can mimic the human menstrual cycle. Researchers described this new system, named EVATAR, yesterday (March 28) ...

Add Yahoo as a preferred source to see more of our stories on Google. In 2017, Ashley Moffett, a reproductive immunologist, walked to the pharmacy near her laboratory at the University of Cambridge, ...

During mammalian reproduction, millions of sperm undertake a journey that only one will finish. This journey to fertilization has been commonly viewed as a race: a sea of sperm competing to get to the ...

The female reproductive system includes organs that produce hormones like estrogen and progesterone. Ovaries release one mature egg each month during ovulation. Fallopian tubes transport the egg from ...