The Sea Troll: An Everlasting Shark?
The Greenland shark is ugly. Its eyes look cloudy and dead. Its snout and fins are stubby. Its meat is poisonous. And that may be part of why most people have overlooked these sharks for so long. But there was a rumor circulating among Greenland villagers that this deepsea dweller could survive for centuries. Scientist John Steffensen went on a hunt to see if this was true and discovered that the Greenland shark can live for more than 500 years, making it the longest living vertebrate on the planet. Biologist Steve Austad explains how the shark avoids death for so long and discovers that its…
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