The 400-year-old shark

The scientists then combined the carbon dating results with estimations of how Greenland sharks grow, to create a model that allowed them to probe the age of the 25 sharks born before the 1960s.

Their findings revealed that the largest shark of the group, a female measuring just over five metres in length, was most likely around 392 years old, although, as Nielsen points out, the range of possible ages stretches from 272 to 512 years.

“The Greenland shark is now the best candidate for the longest living vertebrate animal,” he said.

What’s more, with adult female Greenland sharks known hit sexual maturity only once they reach more than four metres in length, the scientists found that females have to clock up an age of around 150 years before they can produce young.