Discovery Channel :: News, Photo Zoom :: Study: Sperm Have Sense of Smell
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Photo Zoom

What Makes a Sperm's Head Turn?
Stephen Jacobson

What Makes a Sperm's Head Turn?

These images show what happens when a sperm cell catches a whiff of chemical signals released by ovarian cells.  As the last frame shows, a sexy scent can set a sperm cell on a new course.

Pictures: Stephen Jacobson

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