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Strongylocentrotus
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Strongylocentrotus

sea urchin
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Strongylocentrotus is a genus of sea urchins, which are spiny marine invertebrates. These animals have a globular body with a skeleton called a test, and they possess tube feet for movement and feeding. Their mouths are equipped with a complex dental apparatus known as Aristotle's lantern, used to scrape algae and other food from surfaces. Some species of Strongylocentrotus, like the common green urchin (S. drobachiensis) and the small purple urchin (S. purpuratus), are found along the coasts of North America. Sea urchins are found on the ocean floor, typically on hard surfaces, and some species are even eaten as a delicacy.12

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3 Britannica Sources
  1. Strongylocentrotus
  2. sea urchin
  3. echinoderm - Food and feeding habits

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