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.

Christmas dragons are a very mysterious breed. They are only seen during winter, and even then it is hard to catch a glimpse of one. They are responsible for the general cheer that spreads during the holidays. In essence, they are the “Spirits of Christmas.”

Jolly is Holly's sister. They came in a pair, when Koor found them. They were two little festive eggs, strangely with a thing called a bow on them. At first, he did not know what this festive strip of cloth was called, but he went to Kuffz for advice.

Jolly is a born leader. She knows how people think, and is great at seeing body language. She leads food-scavenging parties and other things. Once, she had to lead a battle and kill three rogue magma dragons.