A new study shows that lab-grown sperm cells can be derived from stem cells. July 9, 2009 — -- The face of infertility-- in literature, in the media, in advocacy groups -- is so predominantly ...

Egg fertilization is often described as an epic swim meet: Millions of sperm swim as fast as they can toward the egg until one — the fastest, strongest, healthiest sperm of them all — wins the race ...

Scientists have identified a protein that may be key to proper sperm formation. Without it, male mice produced no viable ...

In-vitro gametogenesis, or IVG, is a concept that sounds like science fiction but is slowly becoming a real possibility. Imagine creating eggs or sperm from skin cells, all outside the body. It’s a ...

As we age, our cells accumulate DNA mutations. If any of these mutations confer a growth advantage to a self-renewing or long-lived progenitor cell, its lineage can expand. The progenitor cells that ...

A team of Columbia researchers has developed one of TIME Magazine’s best inventions of 2025: an innovative AI-imaging advancement that addresses male infertility. The Sperm Tracking and Recovery ...

When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show at fertilization. They see a microscopic flash at fertilization, a burst of ...