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.

Thiadlenda spends all her time with her counterpart Thiadliaf, the dark split dragon. Together they hunt, but most of all, they discuss science, history and philosophy. No dragon has ever seen them walk separately. They usually only see a bundle of wings, while the four heads in the middle do the talking. Thiadlenda and Thiadliaf are seen as the wisest dragons of the dragon group, and are often asked for advice. The two dragons often have a different view though: Thiadlenda is mostly more liberal than Thiadliaf. This doesn't matter, for they have something to discuss then.