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Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (/ ˌæstəˈrɔɪdiə /). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea.
Learn about the starfish, also known as sea star, an echinoderm with no brain but amazing abilities to regenerate and feed. See stunning images of different species and habitats of these marine animals.
7 Ιουν 2024 · Starfish (or sea stars) are beautiful marine animals found in a variety of colors, shapes, and sizes. All starfish resemble stars, and though the most common have only five arms, some of these animals can grow up to 40 arms.
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22 Αυγ 2024 · Study how sieve plates and suction-cupped tube feet enable sea stars to catch prey and move through water Anatomy and physiology of starfish tube feet. (more)
Learn about starfish, also known as sea stars, their appearance, behavior, diet, habitat, reproduction, and threats. Find out how starfish are related to other echinoderms, how they can grow back limbs, and why some are keystone species.
Learn about sea stars, also known as starfish, which are invertebrates with spiny skin and five or more arms. Find out how they eat, where they live, and why they are important for the ocean ecosystem.
12 Νοε 2009 · Though commonly called starfish, sea stars are not fish but echinoderms, more closely related to sea urchins and sand dollars. Only the five-armed species really resemble stars—others may boast...
