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Up to 8 " (20 cm) accross
A rounded , creature sometimes with purple - blue tinge, Inside the brittle exo skeleton " Test" is the edible part or "Roe". The urchin moves by tuberous feet and has 5 powerful teeth on the underside which raze seaweed and small animals on rocks. They are preyed upon by seals but in adult Urchins long movable spines protect
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