Arctic Leviathans are dragon like predators native to arctic world of Grelbin, located in the Bogon Galaxy. Extremely rare creatures, these creatures dwelled under the ice sheets, occasionally surfacing their long neck to attack surface-dwelling prey via using their breath, which could freeze them into a block of ice. Because of the threat they posed toward locals exploring the frozen tundras, the natives of Grelbin created the Y.E.T.I.s, genetic monsters to hunt the Arctic Leviathans. The Y.E.T.I.s however instead went rogue, and attacked the locals instead of the Arctic Leviathans. Ironically, the Arctic Leviathans are known to eat Y.E.T.I.s, whose numbers are constantly growing due too a quick breeding cycle.