The Idrakagar with their quadrupedal locomotion, massive size and cave-dwelling lifestyle may be the most dragonlike of all my dragons. Being so close to their animal roots and yet possessing the greatest intelligence among the dragons, they are most wise as to the natural world.
Must be frustrating for them to possess such intelligence, yet be treated much like animals (I'm assuming). Though I guess if the dragons don't use actual pack animals, such work wouldn't be considered demeaning. Hmm . . .