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.
List of Star Wars species (K–O)
Large manta-ray like creatures that were encountered by Lando Calrissian during his early adventures in the Outer Rim. They live in a nebula called ThonBoka where they are nourished by nutrients from their sun. They live in the vacuum of space and have the unusual ability to travel through hyperspace for short distances. If an Oswaft is deprived of nutrients from a star for too long it will turn opaque and die. They can also subsist on the waste products of spaceships such as the "Millennium Falcon" and produce waste in the form of valuable minerals.