Sperm may be sort of funny looking — like tadpoles in a panic — but it’s a lot more complex and interesting than one might imagine. No other cell (to my knowledge) has been played by Woody Allen, ridden by Zoidberg on a Fantastic Voyage-type episode of Futurama or honored in a memorable movie musical by Monty Python. But how much do you know about these little wigglers on which the survival of your species depends? Well, you’re about to learn a little more.