For the past several decades, fertility rates have been in decline. In 1950, the global total fertility rate was around 4.8, meaning that the average woman could expect to have 4–⁠5 children during ...

A new study provides the first evidence of a direct interaction between kisspeptins, proteins crucial for sexual development, and astrocytes, non-neuronal cells of the nervous system, blazing new ...

Forget what you know about the birds and the bees: Sometimes you just have to take matters into your own hands. The entire female menstrual cycle has been replicated in a bento-box-like device that ...

Scientists have uncovered the genetic underpinnings of one of the ocean's most bizarre animals: a branching marine worm named Ramisyllis kingghidorahi that lives inside sea sponges and reproduces in a ...

University of Manchester scientists have discovered significant concentrations of microplastics in the male reproductive system of sea turtles. The scientists also found slightly less, but still ...

Women undergoing a particular chemotherapy had a much greater number of eggs in their ovaries than expected, a finding that surprised researchers. Skin cells from mouse moms were matured in a lab dish ...

The following outlines aspects of the female reproductive system, including the internal and external organs, the menstrual cycle, the egg, and reproductive hormones. The menstrual cycle is a monthly ...