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.

Tully Yang is best known for his devotion and good spirits among the Weyr. He takes care of the children, not only his own, alongside his wife, Tally. The two take care of an orphanage of sorts- all children who were born after he joined the Weyr see him and his wife as a sort of second set of parents, or first if they were orphans. Tully is kind and warmhearted, though a little more stern than his wife in order to make sure the kids grow up well and respectable. He and his wife were hatched in the Weyr at the same time and have lived together since then, raising the most children ever recorded in the Weyr together, rising above forty and continuing as long as they live.