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.

To the amazement of a young dragon lover, the hatchling she had saved from abandonment had two heads. It was so lonely and full of sorrow, that she took pity on the little thing, taking on the responsibility of taking care of the hatchling. She returned him to her home, raising it with love and naturing care. A few days after it arrived at her humble abode, it's spirits brightened. The girl gave the two headed hatchling a name, ZeloZelos, to the joy of the growing hatchling. The next day, wings were found on the young dragon's back, as well as her scales had grown to be only one color. A few days later, it was fully grown, and the girl celebrated its coming of age.