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.

Aquudrx is a lively water dragon. Although he is a few hundred years older than Alerath, he has befriended him anyway. Together they pulled the master prank on an unwary king. This consisted of stealing hundreds of Alailex's paper airplanes, and Aquudrx moving from his normal lake home and with Alerath's help into the castle moat. With Alerath's control of weather, they sent the paper airplanes over the castle; once there Alerath made them circle endlessly. As the people inside the castle started to evacuate Aqudrx popped out and scared them all back inside. Aquudrx had so much fun he stayed in the moat and it has become a sort of game for the castle residents to try to sneak out without being caught by him.