What they look like, I left up to you guys. The dragons are for the most part pretty generalized, so I thought Id give a little creative freedom with just a skeleton.
As for how they act, again, I didnt want to pidgeonhole you guys. The only decently solid thing Ill tell you is that you can expect a rough heirarchy, or natural pecking order based on size. That's pretty natural though, for just about any species.