Starfish or sea stars are pretty unique marine invertebrates animals. They are also known as asteroids due to being in the class Asteroidea. Usually, they 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. Many species are brightly colored in various shades of red or orange like in our minimal cursor pack with Starfish.