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Here's How Men Make 200 Million Sperm Every Day

Human testes are masters of mass production, spitting out sperm at a rate of 200 million per day. But that doesn’t mean the process is fast–it takes 64 days to make a sperm. The organ keeps the count high with an assembly-line anatomy that scales up sperm development from a trickle to a flood. » 6/24/15 3:11pm 6/24/15 3:11pm

Why This Adorable Squid Cuddles For Hours After Sex

Southern dumpling squids (Euprymna tasmanica) are natives of shallow, sandy Australian sea beds, and their small, squat bodies and huge eyes combine to make them one of the most frickin-adorable animals on the planet. They spend their days hiding under the sand, but at night they’re tenacious lovers.
» 6/16/15 1:39pm 6/16/15 1:39pm

The First Person Who Ever Saw Sperm Cells Collected Them From His Wife

It’s a bright day in 1677, in the city of Delft, and Antonie van Leeuwenhoek is making love to his wife. But moments after he shudders with orgasm, he hurries out of bed to grab his microscope. After all, he’s not just spending time with his wife: he’s running an important scientific experiment at the request of the… » 6/01/15 3:13pm 6/01/15 3:13pm

In A Snake Orgy, Ejaculate Can Get Expensive

Every spring, male red-sided garter snakes enter the mother of all meat-markets. While mature males can breed every year, females are only fertile once every three years, which puts them in very short supply. The result? Snake orgy, obviously. But for male snakes, this sexual free-for-all comes at a surprisingly high… » 5/11/15 10:23am 5/11/15 10:23am

These Robotic Sperm Could Change the Way In Vitro Fertilization Works

A team of Dutch engineers just published the details of a curious new invention: tiny robotic sperm that can be controlled with a weak magnetic field. Like real sperm, these so-called MagnetoSperm flip their tails to swim towards their target. Unlike real sperm, they're made of metal-coated polymer. » 6/03/14 3:40pm 6/03/14 3:40pm

Scientists create a cyborg sperm for the first time ever

Scientists at the Institute for Integrative Nanosciences in Dresden, Germany, have created "the first sperm-based biobots"—a cybernetic microorganism made of metal and a bull's sperm cell that can be remote controlled and used to impregnate an egg or deliver a drug to a target anywhere inside your body. » 12/11/13 10:53pm 12/11/13 10:53pm

Why Is the USDA Storing 700,000 Vials of Frozen Sperm in Colorado?

When a drive through America's heartland showcases mile after mile of cow-filled field, it's easy to overlook the most sobering of all possibilities. These wonderful delicious animals could all get wiped out one day, leaving the world burgerless and milk free. Don't worry. The USDA is on the case. » 8/09/13 2:40pm 8/09/13 2:40pm

Sperm Carry Over 37 Megabytes of DNA Data, and Other Amazing Science…

Did you know that the DNA information in a single sperm contains 37.5 MB worth of data? Which means that an average ejaculation almost instantly transfers roughly 1.5 1,500 terabytes of data. Suddenly USB 3.0 doesn't look that impressive when compared to what Mother Nature's been using for years. » 1/03/13 2:40pm 1/03/13 2:40pm

This Is Why You Don't Donate Sperm on Craigslist

If you've ever considered selling some of your swimmers on Craigslist for a little extra scratch, you might want to give it a little more thought. William Marotta, who did just that, wound up having to pay child support for his biological child, despite having signed away all rights to the little guys and any humans… » 12/31/12 1:30pm 12/31/12 1:30pm

Sperm Captured in 3D for the First Time Reveals Corkscrew Swimming…

Scientists, bless their brains, have finally tracked the paths of sperm in 3D. It's the first time they've been successful in 3D-mapping the trajectory of sperm and it's revealed a few things about those drippy critters: some sperm swim in corkscrew-like patterns and others are 'hyperactive' and hectic. Your sperm has… » 9/17/12 9:30pm 9/17/12 9:30pm