The sperm and the egg cell's nuclei compete for size directly after fertilization and this is necessary for proper embryonic ...

Researchers discover that separate pronuclei in fertilized eggs create a competitive environment essential for maintaining ...

The research team discovered that glassware used to manipulate and culture fertilized eggs in the fields of assisted reproductive technology (ART), livestock farming, and basic research contains toxic ...

In a zero-gravity environment, sperm's ability to orient and navigate towards an egg was significantly reduced. Provided by Getty Images Bank Another hurdle has emerged that must be overcome for ...