 Which words best describe the mob of creatures?
They were something more—and something less—they were, in short, humanity's hopes for survival! They looked like overgrown fireballs, but seemed to have an almost sentient curiosity about anything moving on the ground. There were three of the blobs dancing about over the grazing animals now, as they often seemed to do. Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. Now the three were streaking at fantastic speed to a spot near the ship, to hover excitedly above something that moved there. Shaggy heads, brute bodies vaguely man-like! One seemed to be almost eight feet tall, leading the others directly toward the spacesuited cadets.
 ugly, hairy, and clever
 ugly, hairy, and clever  monstrous, large, and foolish  slow, strong, and mean  tall, thick, and caring