Polished Crinoid Fossil Sphere | Ancient Sea Stone | Natural Ocean Fossils | 2.5 Cm or 3cm Spheres | Fossilized Sea Lily | You Pick Size! - Etsy

🪶 Big Blue Monday Fun Fact 🌟 Meet The Feather Star. This weird reef visitor isn’t coral or a plant. It’s a feather star, an echinoderm related to seastars. It can crawl along the reef and even swim short distances using its feather-like arms. Feather stars are filter feeders. They spread their arms into the current to catch plankton drifting by. During the day, many stay curled up and hidden in the reef. At night, they emerge, spread out, and become much more active. This is why you’re more li