What’s New? Don't Cook your Balls
It takes 72 days for a sperm cell to fully mature
True or false?
Cheering on your favorite team can boost your testosterone
The fruit fly has the largest sperm in the animal kingdom. Their tightly coiled sperm can measure up to 2.3 inches long when laid straight out. Almost 20 times the size of their body!
Bat sperm can live inside the female reproductive tract for up to 135 days