Scientists have discovered how a sperm and an egg fuse together, in a way that resembles a ‘lock and key’. New research focuses on the mechanism that connects the two types of cells across ...

Egg fertilization is often described as an epic swim meet: Millions of sperm swim as fast as they can toward the egg until ...

Save guides, add subjects and pick up where you left off with your BBC account. Most animals carry out sexual reproduction. Sexual reproduction involves the joining of two sex cells or gametes ...

Monash researchers have discovered that swimming sperm create swirling fluid ... them an extra boost in the race to the egg. The study, published in Cell Reports Physical Science, reveals that ...

All new babies start as an egg and a sperm, but where do those two cells come from in the first place? Your reproductive organs produce the sex cells that make a baby. Sperm cells begin their life ...