Marine Creatures Echinoderms
Marine Creatures Echinoderms are a diverse group of marine animals characterized by their radial symmetry and spiny skin. They typically have five-part symmetry and a water vascular system that helps them move and feed. Echinoderms include starfish, sea urchins, sand dollars, and sea cucumbers, among others. These fascinating creatures play important roles in marine ecosystems, serving as predators, scavengers, and filter feeders.