Richard E. Strassberg earned his Ph.D. in East Asian Studies from Princeton University.
Starfish are marine invertebrates. They typically have a central disc and five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates.bout 1,500 species of starfish occur on the seabed in all the world's oceans, from the tropics to frigid polar waters. They are found from the intertidal zone down to abyssal depths, 6,000 m (20,000 ft) below the surface.
Starfish Description. This marine creature is one that is the most recognized by people. Starfish are found in all sizes due to location. Some of them are light brown and others are golden or dark brown in color.Some also feature a reddish tone to them.They have a detailed water vascular system that enables them to get around in the water.his marine creature is one that is the most recognized by people. Starfish are found in all sizes due to location. Some of them are light brown and others are golden or dark brown in color.