Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence is usually marked by the growth of a hatchling's wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

When water dragons mature, they lose their legs and the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

The World Snake is a dragon of legend, often heard of in Norse mythology as a serpent that could encompass the world with its body. Though perhaps similar to a serpent in body type, the World Snake is one hundred percent dragon. He remains mainly dormant on the ocean floor, indeed encircling the world with his massive body but is seldom aggressive. Being such a big dragon, the World Snake is often dormant for long periods of time and can become so still at such periods of time that other aquatic creatures make their homes in his fins and in the shadow of his snake-like body. When something big enough, say a whale or squid comes close enough after a certain amount of time, the World Snake will strike but otherwise seldom moves and is quite a peaceable creature. When he is angered however, they say he could reverse the tides with his sheer strength and size because of the displacement he would cause if he moved drastically.