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.

Frelia's situation is a very unique one. She has long loved a Christmas dragon named Saint Sigmund, but after a few years of only seeing him every Christmastime she decided she couldn't handle waiting for him all year. She mated with a red dragon named Barcan instead, but when Sigmund came back the next year she didn't have the heart to turn him away so ever since then, she's spent all year with Barcan and a few hours every Christmastime with Sigmund when he comes to visit her. Barcan and Sigmund both know of the arrangement, but neither of them say anything about it because they don't want to give her up. Whenever Frelia has children by Sigmund, she always tells her family and friends that they are Barcans, as they don't know about Sigmund.