Measuring the Greenland shark’s growth rate is challenging because individuals are rarely recaptured. However, one shark tagged in 1936 had only grown 2.3 inches when it reappeared 16 years later.

Nielsen and his colleagues found that the estimated age of a Greenland shark was over 272 years, though some models suggested that the upper age limit could be nearly 500 years. Its discovery ...

While the Greenland shark (Somniosus microcephalus) may not have the same fame as the great white shark, it holds an impressive distinction: it is the longest-living vertebrate species known to ...

In fact, a lot of what we know about this species is borrowed from the Greenland shark. According to NOAA, “the two species are so closely related that they can interbreed and are difficult to ...

The Greenland shark lives in one of the most extreme environments. Temperatures frequently fall below zero, yet this shark thrives. It’s predicted that this shark could live to 200 years old ...