A Chinese scientist horrified the world in 2018 when he revealed he had secretly engineered the birth of the world's first gene-edited babies. His work was reviled as reckless and unethical because, ...

Over the past four decades, sperm counts among men worldwide have dropped by more than 50 percent, according to a 2022 ...

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 ...

Scientists have identified microplastics in over two-thirds of ovarian follicular fluid and more than half of semen samples, suggesting widespread internal exposure. The findings spotlight a growing ...

If we want to colonize space, we need to figure out the whole reproduction thing. An experimental injection could restore the youthfulness of eggs taken from older women. New research shows it's ...