A snake that grew bored with its life on the ground sprouted wings. This happens to about 1 in 500 snakes. Only about 1 in 3,000 of those will actually be able to fly.
Herpetologists are still unable to explain the willed generation of wings which can resemble bird wings, moth wings or even buffalo wings. The growth seems to be psychologically motivated and never happens to snakes ranking under a 17 on the Harrison Serpentine Depression Scale. The more dejected a snake becomes with its ground life though, the more likely it is to grow wings and fly away.
Snakes capable of flight often move quickly to a 1 or 2 on the HSDS and are considered the happiest snakes in the world (Excluding of course the Reticulated Norwegian Chocolate Guzzler). Flying snakes aren’t an entirely positive thing however, as airborne ophidians depart not only the surface but their proper place on the food chain. Most become drunk with power and begin eating birds and larger mammals. History records 14 human deaths in 2012 from anacondas in flight.
This is only half as many people as have died of nausea when “Anacondas” turned out to be their in-flight movie however, a disaster of cinema that lead to the ban on snakes on planes referenced by Samuel L. Jackson in his famous action film, “The Negotiator”.