Cracian thumpers were bipedal herbivores used as pack and riding animals. Originally from the planet Craci in the Corporate Sector, they possessed clawed forelimbs and hindlimbs, and a powerful tail. Their large, padded feet allowed them to move very quietly, earning them their ironic name—the "thumper"—which implied it should have thumped as it ran. They were loyal creatures, and unusually bright for a beast of burden; they were capable of being trained to perform a number of different tasks, to recognize patterns, and to follow simple commands. Though normally inoffensive, their claws and tail made them deadly opponents when they were threatened or trained to fight.