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.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons 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. In Galsreim, dragons and humans coexist peacefully.

Koriba didn't grow up around her parents; all she knows about them is their names. You could blame that for her cold attitude to other dragons, as it appears more so towards parental dragons. One of the only dragons she has talked much to is Lyu; since he is the same breed she decided that acting social couldn't kill. When they were hatchlings they tended to rough around on the ground a bit, which didn't really follow what Lyu's parents were trying to teach him.

Lyu has always been for Koriba though, and she has grown to love him like a brother. When they were young she was attacked by a group of Red Dragons who were starving, their land was destroyed and they were looking for anything to eat. Lyu fended them off for awhile and then his father stepped in, driving the Red Dragons away, but since that day Lyu's parents have never looked at Koriba the same. So now the only one who tends to see her is Lyu.