Skywing Dragons spend most of their lives flying in the air. They hunt from the air, diving at prey from above, and land only to rest. They are some of the fastest fliers, capable of extremely high speeds. The webbing at the end of the tail acts as a rudder, allowing them to easily change direction during flight.

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.

John Sheppard, usually just called Colonel, loves giving things names. He will name the trees, the rivers, the animals, and the rogue dragons that sometimes wander into the Separator Territory. His favorite names seem to be 'Todd' and 'Bob'.

Sheppard was one of the dragons that went with Dr. Weir to find the lost city of Atlantis, and was also one of the ones to return when they discovered that the lost city was occupied by a bunch of less-than-friendly water dragons and in a very bad condition. Shepperd would have been more than happy to take them out, but Weir told him that it just wasn't worth the effort and they left.

Sheppard and his friends now live on the Separator Border, keeping an eye out for any trespassers and dealing with them when necessary--which usually means playing round after round of freeze tag until 'Todd' and 'Bob' flee in terror.