Why is it...

That only the female of the species knows the steps to every fad dance ever?

It's absolutely baffling to me. And no doubt to every other man on the planet. Apart from the gay ones, they know the steps by heart and on most occasions actually make the women look like amateurs.

I guarantee that if you ask a DJ at a party to play YMCA, The Timewarp, or any other pop song that has an ubiquitous dance to go with it, that there will be a massive influx of women onto the dance floor. And the gay guy.

Feel free to try this as an experiment in human anthropology.