The legend of the invisible cows is quite an obscure one. It involves Hawaiian princesses, rich American ranchers and mysterious bovine creatures trying to keep warm.

Or they could be from outer space. There’s a brilliant spoof encyclopedia entry that explains everything (or nothing, actually). Either way is a bit of fun that evokes the legend in a very modern way.

See if you can find where the invisible cow is hidden by moving your cursor around the screen. It’s not all that difficult, to be honest, but it is a quite amusing. You’ll need sound to help you and we’ve found that this works best in Chrome.

We reckon that offices and schools all over the world will be filled with the distinctive sounds of this site over the next few days.

So brace yourselves. It’s funny now, but so was Crazy Frog in the beginning. And remember how that ended up...?