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.

The black dragon Sylar Gabriel has always been power-hungry. Hunting weaker dragons, killing them to understand how they work has always been his task. He is a blood-thirsty, disingenuous warrior who only cares about himself. He had thought he could live like that forever, hunting weak prey for what they can offer to him, being the bad guy. But then one day, a female dragon came around and told him she were his mother. Since he never knew his real parents, he wanted to believe her, however, he soon found out that she lied.

Ever since, he is searching for his real parents, for the thinnest chance to know who he really is. Where he comes from. What he is supposed to do. And he still doesn't know.