Starfish is not actually a fish at all! There are several types of shapes of this nature’s creation: like Sugar starfish, white starfish, Crown of thorns, sunflower star, Bahamian etc. Actually, there are nearly 2000 kinds of sea stars! We use to think that starfish has its five legs, but some of them have more, which radiate from an indistinct disk, like sunflower fish. There are about 1,800 known living species of them.