Competition among sperm cells is fierce - they all want to reach the egg cell first to fertilize it. A research team now shows in mice that the ability of sperm to move progressively depends on the ...

When considering how sperm move, the word "swimmers" comes to mind. The classic microscopic image is of a tiny cell swishing its tail from side to side as it propels forward. A new 3D model upends ...

DALLAS – Nov. 15, 2005 – New experiments that prevented rat sperm stem cells from changing permanently into sperm have brought researchers one step closer to coaxing such cells to behave like ...

Molecular mechanism uncovered in mice by UC Santa Cruz researchers reveals how a father’s diet, stress, and other ...

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 ...

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 ...

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 ...

During fertilisation, the egg cell and the sperm are bound together by, among other things, two specific proteins. Researchers have now demonstrated that this represents a special type of binding, ...