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.

Green dragons are also sometimes called "earth" dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

Kotasoth is a greedy dragon. He hoards as many shiny objects as he can, from jewels and coins to weapons and armor. He is very protective over his corner of the cave and growls at any other dragon that comes near. Even if he is asleep when something of his is stolen, he will somehow know exactly what was taken and go searching for it. The hatchlings occasionally like to vex the old dragon by taking one of his trinkets and hiding it elsewhere in the cave.