Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

Companies are racing to accelerate and commercialize in-vitro gametogenesis, or IVG, which would make human eggs and sperm in the lab from any cell in the body containing anyone's DNA. One of the most ...

One of the most cutting-edge and controversial fields of biomedical research right now is the quest to create eggs and sperm in the lab for anyone with their own DNA. And now, private companies have ...

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 ...

Scientists have detected microplastics — the tiny and pervasive fragments now found in our seas, drinking water, food and, increasingly, living tissue — in human semen and follicular fluid, according ...

Off a quiet hallway on the top floor of a building at the University of Osaka in Japan, Katsuhiko Hayashi is hatching a revolution. Human embryo science: can the world’s regulators keep pace? He is on ...

With a rising focus on interplanetary colonisation as a safeguard against existential threats, scientists are investigating whether humans can reproduce in space. While significant strides have been ...

As humans gear up for an era of exploring places like the Moon and Mars, a big question arises: can humans reproduce in space? In many ways, we’re still far out from a definitive answer, and ...

One of the most cutting-edge and controversial fields of biomedical research right now is the quest to create eggs and sperm in the lab for anyone with their own DNA. And now, private companies have ...