A first-ever analysis of the whole Greenland shark genome gives researchers a couple of clues to their longevity.

Between eight and 14 feet but can reach up to 23 feet Using this method, scientists discovered Greenland sharks have a life expectancy of at least 272 years and could reach 392, give or take about ...

Mostly found in the Arctic and North Atlantic oceans, Greenland sharks are leisurely swimmers that can reach between 8 and 23 ...