In her new book "The Stronger Sex," science journalist Starre Vartan dispels myths and misconceptions about the female body.

With CatSper activated, the sperm's behavior switched from the relatively smooth motions they use for navigation to the hyperactive movements needed for them to enter the egg for fertilization.

Apr 12, 2025 18:00:00 Experts say the meeting of sperm and egg is more like a job interview than a competition. What is the mechanism of fertilization, which is even more rigorous than a first ...

When they turn 18, children conceived from donor sperm or eggs would have access to the donors’ names and contact information under a bill before the Legislature.

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 ...

It describes the development of sperm in the testes, their journey through the reproductive tract, and the fertilization process involving an egg and sperm.

The feeling was a relief after so much worrying: She and her husband, Alexander, had tried for three years to conceive before turning to in vitro fertilization, and Daphna, once pregnant, had ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...

Genetic studies have identified many proteins that contribute to the first contact between egg and sperm. However, no direct evidence has yet demonstrated how these factors bind or form complexes to ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...