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.

A novel screening system developed at Kyoto University enables researchers to investigate sperm cell development and health at the molecular level. The new approach, published in Cell Genomics, ...

A novel screening system enables researchers to investigate sperm cell development and health at the molecular level. The new approach promises breakthroughs in male contraception and infertility ...

Sperm are male reproductive (sex) cells. The word "sperm" can refer to spermatozoon (singular) or spermatozoa (plural). Sperm are tiny cells with an oval-shaped body and a long tail. They measure just ...

Using Google’s AlphaFold, researchers identified the bundle of three sperm proteins that seem to make sexual reproduction possible. By Elizabeth Preston They’re the original odd couple: One is massive ...

It’s a complex process to identify a new star within a congested galaxy. It’s equally as trying to isolate cells viable for reproduction in someone struggling with infertility. A new artificial ...

Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...

A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood, in an attempt to regain fertility. Doctors are waiting to see if the ...