There is an art, or rather, a knack to flying. The knack lies in learning how to throw yourself at the ground and miss. Pick a nice day, [The Hitchhiker's Guide to the Galaxy] suggests, and try it.
How To Fly
Insects Evolved Wings
If we find insects with wings in the buried remains of a Mississippi swamp, does it mean that insects evolved wings in the Mississippi swamp? No, it means that insects with wings were buried when the swamp was buried.