Medically reviewed by Andrea L. Braden, MD Key Takeaways The female reproductive system includes organs that produce hormones like estrogen and progesterone. Ovaries release one mature egg each month ...

In a study providing important new insights into the development of the female reproductive tract and fertility, researchers have revealed how the thickness of fluid surrounding the egg can impact the ...

But science is beginning to learn that various chemicals in the female reproductive system can facilitate – or sabotage – that sperm’s chance for victory. And it appears to happen at an early stage in ...

The gut-brain axis describes the two-way communication between the neurons that make up the central nervous system, which includes the brain, and the so-called peripheral nervous system, which ...

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...

Some animals can produce offspring from an unfertilized egg in an asexual reproduction process known as parthogenesis. When this is the standard process for a species it's said to be 'obligate' and ...

Believe it or not, but ducks have a reputation for the unexpected: bizarre and intricate mating anatomy. According to ...