Scientists have successfully created immature human egg-like cells from skin-derived stem cells, a significant step in reproductive science. This brea ...

The information is crucial for the Black Bear Litter and Diet Survey, which is an ongoing study on black bear reproduction.

A 40-something woman decides whether to continue pursuing fertility treatments as costs pile up and her chances at pregnancy diminish.

Young adults in Japan are having less and less sex, according to a recent review – and we don’t know why. The review estimated that around half of Japanese people reach their mid-twenties with no ...

Chronic stress is on the rise—the result of an evolutionary mismatch that our bodies and brains, adapted over hundreds of thousands of years to hunter-gatherer conditions, are experiencing in ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.

According to neuroscientist Ben Rein’s new book, Why Brains Need Friends, it comes down to our brains. As he explains in the ...

A global study of over 1,100 species reveals an evolutionary reason why females consistently live longer than males.