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Sea urchins are opportunistic omnivores. They *can* eat a starfish, but they almost certainly wouldn’t kill one. Do asterina starfish eat coralline algae? The vast majority are opportunistic scavengers and/or herbivores that eat coralline or other types of algae. It has been estimated that of all the Asterina sp. varieties,Read More →

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So, Does Starfish Have a Brain? The answer is NO, they don’t. Starfish have a nervous system spread through their arms. … Their nervous system is a nerve ring around the mouth which extends into every arm through the radial nerve. What animal does not have a brain? There isRead More →