It's commonly thought that sperm "race" to the egg, with the winner fertilizing it. But is this really the case?

Researchers have uncovered the mechanism behind the arms race for mouse X and Y bearing sperm to fertilize an egg.

The success of in vitro fertilization (IVF) depends on numerous factors, including the viability of sperm. A recent study ...

In an advance for treating male infertility, researchers transplanted a patient with his own sperm-forming stem cells that ...

Each of those seven baby mice had two biological dads.

The success of in vitro fertilization depends on many factors, one of which is sperm viability. A recent study from the ...

At 0 hours, IVF efficiency (fertilized zygotes vs. total number of eggs) was significantly greater with sperm that were initially attached to suLeX (at 53%) than a control with no oviduct ...

Human Chorionic Gonadotropin (HCG): A hormone ... An assisted reproductive technique that involves removing sperm and eggs, fertilizing them in a laboratory, then placing a fertilized egg in ...

At 0 hours, IVF efficiency (fertilized zygotes vs. total number of eggs) was significantly greater with sperm that were initially attached to suLeX (at 53%) than a control with no oviduct ...