Dyed Starfish come in a variety of sizes, shapes and colors. Sea Stars are not fish at all, they are actually Echinoderms. They are closely related to sea urchins and sand dollars. There are thousands of sea star species. It typically has five arms, with the center disk of the animal being much wider than the stubby arms are in length.They can regenerate lost arms and are covered in armor. Sea stars move using their tube feet and have eyes at the end of each arm.