In the grand scheme of things, those tiny swimmers are nature's building blocks and the male contribution to human creation. They may look similar to tadpoles but their importance, obviously, goes ...

Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...

A colony of human embryonic stem cells is seen on a computer monitor at the University of Wisconsin–MadisonDarren Hauck / Getty Researchers at Newcastle University in England report they have coaxed ...

Scientists warn that storage may cause sperm to lose quality over time, raising new concerns about fertility and conception ...

Video of a new mathematical model that predicts that mammalian sperm cells have two distinct swimming modes. This prediction opens new questions about potential connections between sperm cells’ motor ...