viernes, 19 de marzo de 2010

How a Man Produces 1500 Sperm a Second

In the last second your bodies each produced at least 1,500 sperm cells.

Now researchers have unlocked just how this seminal feat is possible.

Source:
http://news.nationalgeographic.com/news/2010/03/100318-men-sperm-1500-stem-cells-second-male-birth-control/