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As The New Yorker puts it: \u201cGreenland sharks are among nature\u2019s least elegant inventions. Lumpish, with stunted pectoral fins that they use for ponderously slow swimming in cold and dark Arctic waters, they have blunt snouts and gaping mouths that give them an unfortunate, dull-witted appearance.\u201d And they can get incredibly old. Despite its poisonous meat, in Iceland H\xe1karl is even considered a local delicacy.