This is a story about the Greenland artic shark grows 1/2 centimeter a year, so a 7 metre shark would be several hundred years old, the oldest non-plant living creature on the planet. It swims as deep as 2,100 meters, or over 1 mile deep. It appears in summer months in shallow waters, which is where this researcher studies them. In winter they live under the ice, but no one knows where they go, how they mate, what they eat.
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