Frilled Dragons are smaller than most other breeds, but when threatened, they stretch out their wings and frills to appear larger. They generally do not like to fight and prefer hiding to confrontation. Frilled dragons live in small groups and often band together to scare off potential threats. Males also use their frills as a way to attract mates, with those displaying the “best” frills being more likely to breed.

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.

Thelduinn is a very happy-go-lucky dragon. It's pretty much impossible to put him in  a bad mood, and he has a knack for appreciating the tiniest things. Everything from nice weather to the first flower of the season to a pretty sunset will have him grinning ear to ear. His smiles are highly contagious, probably because of how funny he looks since his frills poof up enormously while he's smiling. It's most likely that he is so thankful for everything because he was rescued as an ER hatchling very close to death, making him grateful for just about everything. He sure knows how to put everyone around him in a good mood.