Feeding Habits
The animals have a mouth with special jaws (Aristotle's lantern) located on the bottom (oral) surface. Their preferred diet is seaweeds, kelp and algae, which they scrape off and tear up from the sea floor. During larval development, urchins use bands of cilia to capture food from the water column.
Read more about this topic: Red Sea Urchin
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—Abraham Lincoln (1809–1865)