The Puff-Tors are an extraordinary species of burrowing worm-like organisms who have developed a novel method of attack: by filling their bodies with warm air, they can float relatively high above the planetary surface. This allows them to keep a bird's eye view out for potential prey. Once they spot a tasty morsel, they suddenly will deflate and drop onto the organism, diving back under the ground in the process, only to rapidly burrow back up to the surface moments later to again inflate themselves.