Talk:Dragon Physiology/@comment-29387608-20160731170643/@comment-3396538-20160801105413

Think of it in terms of numbers. You have X amount of stamina. When you fly you use up Y amount of said stamina, and when you breathe fire you use up Z amount of stamina. If you constantly breathe fire, after awhile you'll run out of stamina and won't be able to fly.