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.

Scream and Silence live very isolated in Kiko's Cave. They prefer living on their own, while they only speak to Kiko and some of the hatchlings. They have been very lonely for a long time, since the other dragons didn't accept them in their group. But by now they are a full member of the Family (how Kiko calls living with her dragons) and help the others by hunting larger animals, that single dragons may not be capable of hunting. They bring the food to the cave and share it evenly. Scream likes Flavia especially, while Silence gets along very well with Bella.

The two heads nearly never fight with each other. They love each other as much as someone could. Now that they finally have found their mate in Midnight and Storm, they live together with the other dragons in the biggest cave and play with the hatchlings.