WEIRD NEWS
02/21/2014 03:16 pm ET | Updated Feb 24, 2014

Sperm 101: 10 Crazy Facts You Never Knew About His Swimmers

Science Photo Library - KTSDESIGN via Getty Images

When it comes to sperm, are you all up on your swimmers-knowledge? There's a lot to know about those little guys. Here are just ten of the many wild facts you should know about sperm.

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