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.

He used to be a beautiful golden dragon. His shiny scales would glisten in the sunshine outside of his master's cave. A very old gray dragon told him that cheese would give him great beauty and strength. From then on, he ate cheese, non-stop. One night, he woke in agony and went for a drink near the lake. He yelped when he saw his reflection. No longer was he a beautiful dragon with shiny scales. He had become a horrific yellow holey dragon.