Researchers have found an ancient shark in the North Atlantic, believed to be 512 years old, which could be the oldest living vertebrate in the world. This particular shark, was measured at 18 feet in length and weighed over a tonne. Greenland sharks are one of the slowest growing species in the world, and don’t actually reach full maturity until they’re over 150 years old. By measuring the size of this shark, researchers suggest the animal could have been born as early as 1505, making it even older than Shakespeare.
