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 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.

FortuneOfTheSea is a Water Dragon that loves food, particularly fish. Unlike some other dragons, who would gulp their meat down in big chunks; FortuneOfTheSea likes his food to look nice and taste good. He visited a group of humans on a far island, and they introduced him to sushi. He loved it so much that he has tried to replicate it. He was able to buy (for tons of sunken loot) a magical strain of rice that grows underwater. FortuneOfTheSea uses a tiny hot vent to cook the rice. He catches and properly prepare his fish, using his claws in a fashion that took him centuries to perfect. For Nori, he uses a special hybrid seaweed that he has cultivated himself.