Human sperm have long been a subject of fascination—not just for their role in fertilization, but for their remarkable ability to navigate through some of the most viscous environments in the body.

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The predictable swimming sperm featured in ...

Monash researchers have discovered that swimming sperm create swirling fluid vortices—shaped like rolling corkscrews—giving them an extra boost in the race to the egg. The study, published in Cell ...

New research shows sperm generate corkscrew-like fluid vortices that spin in sync with their tails, providing an unexpected boost. Reading time 2 minutes When we learn about “the birds and the bees,” ...

These insects probably have the largest sperm-to-body-size ratio. A male fruit fly’s sperm is nearly 40 times larger than ...

Researchers have decoded a long-standing mystery of how flowering plants ensure their sperm cells successfully reach the egg for fertilization, according to a recent study published in the journal ...

An Orbital Sciences Corporation Antares rocket is seen on launch Pad-0A at NASA's Wallops Flight Facility, Jan. 6, 2014, in advance of its launch. Bill Ingalls / NASA Though sperm are generally ...