Cheese Dragons are not actually alive. They are enchanted items of food that act almost identically to dragons. They have no need to eat, but they must “live” in humid environments or they will dry out and harden.

Known as Parmesan to the other dragons, He's extremely paranoid and completely devoted to the idea that the others want to eat him. Unfortunetly, he's mistaken because one, The dragons have come to like Parmesan and try to reason with him whenever possible. And two, unfortunetly, Parmesan doesn't seem to realize that dragons don't eat cheese.