|Image: Bettaman via Flickr|
The camouflage is just so ludicrously arty.
|Image: enyagene via Flickr|
And it's not just brown like a curled up, dead leaf, it depicts a leaf catching the light, with shadows in all the right places and you can even see the veins casting tiny shadows along the curled underside. It's like one of those optical illusions that still work even when you know it's a trick.
I doubt they're found often, but if you're up for the challenge you'll have to go to China and Taiwan to try your luck. Either that or most of the world's dead leaves are actually moths...