HUFFINGTON POST
01/12/2011 05:12 am ET | Updated May 25, 2011

Sperm On Steroids: 6 Inches Long and Raring to Fertilize

Call them sperm on steroids, these 6-inch (15 cm) long wriggly organisms that Australian fertility specialists have magnified more than 7000x to help determine which are most likely to fertilize that lucky egg.

The concept makes sense: make teeny-tiny sperm -- one sperm cell is 55 microns from head to tail, which is 25,000 times smaller than a ping-pong ball -- really huge and then take a close look to see which look healthiest.

Read more on healthland.time.com