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.

Two female heads on the same body—Diane and Erra. Diane is more elegant and discreet, while Erra usually reminds of a boy with her brutal and gruesome ways. Diane loves animals and never means them harm. It's a good thing, that Erra has no problems with them, because Diane would rather starve, then kill. Erra is the one that keeps calm while killing and eating and has to do it for two. Diane doesn't even remember, when she had something else in her mouth than water.

It is obvious, that Erra is irritated by her silly not eating sister, but as the food they digest is for both of them, she hunts and eats mainly for herself. If Diane was her non body related sister, Erra would probably leave her because of her weird not eating weakness.