Know someone who enjoys the stimulation of a good book? What about someone who enjoys stimulation of another sort?…

Anyone who’s been paying attention knows that high school sex education in the United States is an unholy mess. And…

Sperm usually swim in a 3D shimmy: a spiral wave travels down the whippy flagellum and rotates its head in a circle…

The New York Times is following a team of doctors at the Cleveland Clinic as they attempt the first uterus…

The birds you see above are all ruffs (Philomachus pugnax): wading birds that summer in marshes through Northern…

Someone please tell me this is a hoax. Announced yesterday with a tweet, the IziVibe claims to be a vibrating dildo…

People are crap at estimating risk. They’re scared of flying, for example, even though it’s far less likely that…

The companies that market so-called “natural” sexual health supplements make a lot of promises, especially when…

Seahorses are famous for flipping the usual reproductive pattern on its head–a seahorse female impregnates the male…

Puberty has a clear physiological signpost in girls: sooner or later, they have their first period. That’s been a…

Male animals can be greedy about paternity. They’ve evolved a ton of different strategies to help them monopolize a…

Some people cheat on their partners. Others wouldn’t dream of it–the risk is too huge. A new video from ASAP Science…

Northeastern University biologist Jonathan Tilly is certain he’s found egg-making stem cells in adult mice. If he’s…

The Bread Lab at Washington State University is a collaboration between plant geneticists and master bakers. The…

This short video from the Howletts Wild Animal Park captures the moment an endangered black rhinoceros entered the…

For the past 25 years, men whose sperm can’t manage the arduous swim across a Petri dish have had the option of…

Wait–men do Kegels? If you’ve heard of the exercises at all, it’s as a way for women to tone up their vaginas after…

The corals of Australia’s Great Barrier Reef are having their annual orgy. Although some corals brood their eggs in…

You know the story of mammalian fertilization: millions of sperm enter the vagina, only one fertilizes the egg, more…

Maybe you heard about that study that showed men don’t want to date smart women. It certainly plays into our…