They lurk deep within caves—motionless, neither eating nor drinking. Why they don't die is not known.

On sunny days, it flies freely through the sky and blends into the clouds. It sings in a beautiful soprano.

To help make its wings grow, it dissolves quantities of prey in its digestive juices and guzzles them down every day.

After a 10-hour struggle, a fisherman was able to pull one up and confirm its existence.