Space Whale

    

 How a species of marine mammals became capable of interstellar travel is not clear. There is little actual information on this subject, most of which varies from source to source. The whale spotted in Beyond Good and Evil is classified as Megaptera Anaerobia, implying that breathing is no longer required for survival, which would be a key evolutionary advantage. The Liir of Sword of the Stars are actually psychic dolphins, which attain whale-like appearance after many years.  Adding to the confusion is the existence of flying whales, a closely related 'cousin' that exists solely in the upper atmospheres of planets (for example, the arcwhales in Skies of Arcadia). The appearances of  Space Whales vary in the extent to which they resemble the whales of Earth.
   

Additionally, whale-like designs in spaceships (and airships) is not uncommon. One of the earliest and most popular examples is the Lunar Whale of Final Fantasy IV, which transported players to the Moon. Another example is the titular spaceship in Whale's Voyage.