Sea stars can produce eggs for up to 200 years. Their surprisingly human-like ovaries may offer clues about fertility and reproductive aging.

A recent study published in Evolutionary Psychology suggests that a neighborhood’s economic and demographic conditions can ...

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 ...

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.

Only a few mammals and some birds are as long-lived as humans, and many of these species share interesting characteristics in how they age. A new paper explores lifetime reproductive patterns in ...

At first glance, bat sea stars, the nubbly, orange, many-footed creatures often found on the seafloor, seem about as far from humans as one can get. Appearances can be deceiving, however. Scientists ...

Why do so many men only think about fertility when there is a problem? Perhaps the answer lies in our societal scripts.