Five species of venomous snakes can compress their bodies into a functional airfoil, allowing them to glide and control their flight. “Flying snakes are able to glide better than flying squirrels and other gliding animals, despite the lack of limbs, wings, or any other wing-like projections, gliding through the forest and jungle it inhabits with the distance being as great as 100 m.” Note to self: KILL ALL THE SNAKES.
Click the pic to read the flying snakes article on Wikipedia. The DOD is already studying these slithering tubes of nightmare fuel.