The Greenland shark, a big slow- moving deep-ocean predator that prowls the frigid waters of the Arctic and North Atlantic, can claim the distinction of being the planet's longest living vertebrate, with a lifespan perhaps reaching about 400 years. Danish marine biologist Julius Nielsen said radiocarbon dating that analyzed the shark's eye lens found the oldest of 28 sharks studied was likely about 392 years old, with 95 percent certainty of an age range between 272 and 512 years.

Greenland sharks may live up to 400 years. (2016, August 13). Philippine Daily Inquirer, p. A16.