Starfish, sometimes more commonly called sea stars, can be found throughout the world's oceans, from shallow tidal pools to deep trenches. They are most often found in rocky areas where they can feed on mollusks and similar invertebrates.
Recently, scientists and experts have suggested that the namestarfish should be changed to sea star. The reason is fairly simple- starfish are not fish! They are actually echinoderms, and moreclosely related to species like the sea urchin than they are anytype of fish. There are over 2,000 species of starfish found intoday's oceans, and no two species are exactly alike!