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.

Aquaieth and Isolieth are the two heads of a Split dragon and the daughter(s) of two of the most quarrelsome dragons in their family. Fortunately, they do not appear to have inherited their parent's nature, and while both the heads have very different personalities, they worked out their differences before they grew their wings. Aquaieth is laid back, easy going and even slightly lazy. Isolieth is a workaholic, takes everything she does extremely seriously and is prone to snapping at people. The duo balance each other out, Isolieth prevents her sister from dozing all day and Aquaieth stops Isolieth from getting overtly hyper over small matters. There is some bickering, but it is more playful than anything else. They have also divided the day between them, an arrangement that seems to be working well, much to their family's relief.