Sixty percent of miscarriages are caused by the failure of an embryo—the developmental stage before a fetus—to implant in the woman’s uterus. Part of the problem is that researchers have no idea how ...

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 ...

Over the past decade, I have made some bold predictions about the future of sex. One that’s been easy is that people will still be having sex for years to come, but for different reasons: they simply ...

Analyzing embryo movements in uteruslike environments could offer clues to improving the success rate of in vitro fertilization ...

If humanity’s future really is in the stars, what will that mean when it comes to, well, making more humans? As a number of ...

A female grey seal tending to her pup on the beaches of Sable Island, Nova Scotia. Gray seals only nurse their pups for 15-20 days before the female leaves and the pup must learn to forage on its own.

Every schoolchild learns that vitamin D is essential for proper bone development. Deficiency leads to rickets, a classical childhood affliction with soft, deformed bones resulting in bowed legs. The ...

Global fertility rates are declining. Experts warn of potential societal collapse. Reduced births could strain essential ...

Cat Bohannon, author of Eve: How the Female Body Drove 200 Million Years of Human Evolution, says sexism is a massive set of rules all cultures have to control female reproduction. For Bohannon, sex ...

What will humans be like generations from now in a world transformed by artificial intelligence (AI)? Plenty of thinkers have applied themselves to questions like this, considering how AI will alter ...