Split Dragons use their sharp teeth and wings to hunt large animals and rarely eat plants. They are intelligent dragons who enjoy mental challenges, preferably alone; Split Dragons are normally solitary except during mating season. When mating, many dragons come together in a group to raise their eggs and hatchlings. These groups tend to be very noisy—reminiscent of a thunderstorm—and last only until the hatchlings are capable of surviving on their own.

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.

Two-headed dragons are unique enough to deserve a separate classification from ordinary dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, snapping back and forth. Their unique anatomy prevents them from breeding with single-headed dragons.

Loki and Mercury are frequently to blame for the chaos in Riley's clan, being that they simply cannot resist pranking the other dragons. Mercury tends to prefer a more subtle approach, but will occasionally sit back and observe when Loki uses one of his plans. Most of the time, Mercury does the planning and Loki the actual actions, but in certain situations this has been known to change.<br/>Both heads are equally childish and are told regularly to grow up—but the two merely grin and continue on with their scheming. They have pranked all the dragons in the clan—even Azkadellia—but rarely get away clean.