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.

Roboris Terra (which name derives from Latin and means "land of the oak") is named after the old oak tree under which her Guardian Dolcesphynx found her. She's hyperactive and very curious: she spends most of the day chasing anything that moves in the bushes. She loves to rest at the foot of Oak and,at night, she always prefers to sleep on top of this tree. Roboris Terra eats only mulberry and oak leaves. This kind of dragon, for its peculiarity, was considered a sort of a plant species, because they use their flake-like-leaf to produce photosynthesis and maintain their scales green.