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.

Lateo doesn't really like the company of other dragons all too much and prefers to be left alone. He can usually be found talking to himself (or rather, his other head) about virtually anything. These conversations can range from deep philosophical discussions no one can make head nor tail of to simply wondering where that dratted hatchling has wandered off to. When Lateo is around others, his remarks tend to be somewhat sarcastic, rude, and blunt without a care for the recipient's feelings. The only ones he seems to actively try to be polite to are Triell and Nonomori, but there have been several times when Lateo has called their decisions idiotic and refuses to obey their commands. He tends to be more tolerant of hatchlings than fellow adults and has allowed them to pounce on his tail, though all the same stands by the claim that eggs are the best company because they're quiet.