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.

Karah and Kalilah are mates to Bolin and Bohai, and they are the laid-back, relaxed version of the energetic trickster twins. They are still sly and clever like them, but they know when to stop, when their pranks get a little too cruel, unlike Bolin and Bohai. But, Karah and Kalilah argue a lot more than their mates do, having more differences. While Karah likes flying, and the company of other skybound dragons, Kalilah is stricken by vertigo when too high in the air, not to mention all the stunts Karah likes to pull while flying, and prefers to either be alone or in the company of the earth dragons like Luulezim the vine and Luzige the green.