Harvested sea urchins are a delicacy as a raw food, Philippines
Sea urchins or urchins, sometimes called sea hedgehogs, are small, spiny, globular animals which, with their close kin, such assand dollars, constitute the class Echinoidea of the echinoderm phylum. About 950 species of echinoids inhabit all oceans from the intertidal to 5000 m deep.[1] The shell, or "test", of sea urchins is round and spiny, typically from 3 to 10 cm ( to in) across. Common colors include black and dull shades of green, olive, brown, purple, blue, and red. Sea urchins move slowly, feeding mostly on algae. Sea otters, sea stars, wolf eels, triggerfish, and other predators feed on sea urchins. Their roe is a delicacy in many cuisines. The name "urchin" is an old name for the round spiny hedgehogs which sea urchins resemble.
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Keywords: animal, aquatic, bed, biology, blue, diversity, echinoderm, echinoidea, ecology, environment, hedgehogs, isolated, life, marine, natural, nature, ocean, purple, red, sea, sea-urchin, seashell, seaside, sharp, shell, shellfish, spiny, underwater, urchin, vacations, water, white
