Velella. Main Page. "Pancake" Sea Slug Among New Philippines Species. Photograph courtesy Stephanie Stone, California Academy of Sciences The shark, so named because it can suck in water to swell up and frighten predators, is likely new to science.
Other known species of swell shark live elsewhere in the Pacific and Indian Oceans, according to expedition scientists at the California Academy of Sciences . (Related: "Megamouth Shark Picture: Ultra-Rare Shark Found, Eaten. " ) SpongeTube.