Terrae Dragons are primarily herbivores who prefer to eat from the tops of trees. However, due to their massive size, they must rely on small, specialized scales to absorb and convert energy from the sun. Since they live in tightly-knit groups, this form of energy absorption helps preserve the forests in which these dragons reside.

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.

Upon Ugger's maturity he began to display the full array of his personality. He enjoys nature, basking in the sun and enjoys long walks(or flights) on cool days. However peculiar as it sounds, he did not decide to venture into the wild with his fellow dragons and instead resides with "his human" who raised him. As such he stays with his human at his forest cottage. To their delight they both enjoy each others intelligence, and the benefits of being able to care for each other and accommodate each others needs are far more desirable than going their separate ways.