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.

Dark green dragons, once they mature, appear to become an entirely different species. However, this isn't true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.

Accacio, who's name means "thorny tree" in Greek, is not really thorny and, to be honest, not much of a tree either, but he is just as dangerous. He is the grumpiest dragon in the group and he snaps his vines at anyone who comes near. The hatchlings are afraid of him and the adults ignore him.

He likes to be left alone and lay in the sun for hours. Of course he's not very mobile anyway, so he sleeps outside of the cave.

Perhaps this all makes him seem like a nasty dragon, but he can be rather nice to Altah (a grey dragon) when he's in need of some rain. Over all, this dragon will always be an outsider.