Portuguese man o' war
The Atlantic Portuguese man o' war lives at the surface of the ocean. The gas-filled bladder, or pneumatophore, remains at the surface, while the remainder is submerged. As the Portuguese man o' war has no means of propulsion, they move according to the winds, currents, and tides. Although they are most commonly found in the open ocean in tropical and subtropical regions, they have been found as far north as the Bay of Fundy, Cape Breton and the Hebrides.
Naval wargaming
Followers of naval wargaming tend to concentrate on historical settings. However, there is a smaller but nonetheless active arm of the hobby that covers fantasy and science fiction naval warfare. The now out-of-print fantasy game "Man O' War", set in the realm of "Warhammer Fantasy", dealt with sea battles where each player typically controlled half a dozen to a dozen model ships. Each model had a corresponding template to record damage, crew levels, and outbreaks of fire, among other bookkeeping activities. In this regard, the game mechanics proved some limiting factors. Ships were split into three categories: Ships of the Line, Men O'War and "Independents". The Bretonnian fleet was modelled on ships of the 17th century, while the Empire tended more towards the look of earlier time, with some ships that carried single large cannon or mortars. Dwarf ships were steam powered ironclads, and they also had submarines and balloons. High Elf ships were fast maneuverable sail powered ships, while Dark Elves mainly used great sea creatures as the basis for their "ships".