sperm facts

(Sperm) Size Matters

Size may not matter in the human world, but when it comes to other animals and insects, giant sperm is the way to go, especially if the creature has a…

Annika Harris | June 19, 2009 - 7:50 pm

Sperm Have To Be “Turned On” To Fertilize An Egg

A study published in the Journal of Proteome Research found that sperm can’t fertilize an egg immediately after entering the female reproductive tract. No, sperm are fickle little guys. An…

Catherine Strawn | April 14, 2009 - 3:45 pm