Male and female reproductive systems allow human reproduction. Fertilisation occurs when a sperm and egg join to form an embryo. An embryo develops into an unborn baby in the uterus during pregnancy.

Despite the steady increase in women pursuing careers in STEM - rising from approximately 8% of the research workforce in 1970 to nearly 30% today - women ...

Scientists have created human eggs containing genes from adult skin cells, a step that someday could help women who are infertile or gay couples have babies with their own genes but would also raise ...

As commercial spaceflight edges closer to reality, astronauts spend more time orbiting Earth, and as we look to one day settle on Mars, questions about sex and reproductive health in space need to be ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Humans don’t have a defined mating season like deer or wolves. Here’s how evolution rewired ...

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 ...