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.

Two headed dragons are a special breed of dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, attacking back and forth. They use their sharp teeth and wings to hunt large animals, and rarely eat plants. It is unknown what would happen if a two headed dragon were to mate with a one headed dragon, since it has never occurred. They only mate within their breed.

S p l i t s c a l e  is a two headed dragon - with two split personalities and proud of that fact. His right side, affectionately nicknamed Yin, fits in with the dark part of the color wheel. He features a cruel personality, sadistic to the limit. However, the left side, who goes by Yang, fills in the other half of the wheel. He always manages to brighten up an otherwise unhappy moment, and keeps some sunlight in  s p l i t s c a l e's otherwise dark personality. The two sides, quite strangely, manage to work together very well, and tend to manage all of their split troubles efficiently.