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.

Black dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

Express is nicknamed The Delivery Dragon, because he was named for his love of delivering things. No matter how small, Express is on the job. He gets it there fast and intact. He zooms around very carefully placed obstacles trying to make sure that if his dream of delivering a fragile egg is every fulfilled, he'll be sure to get it there in record time, and to make sure it has a future as a dragon as well. Express overall is very devoted to his hobby, but never wants to make profit on it, because to him, delivery should always be free!