THE world’s “most mysterious” shark that lives for 400 years has been spotted lurking off the UK’s coast. Greenland sharks ...

As shark season approaches in the UK, are you aware of the giant 400-year-old sharks that can be found in our waters?

Deep-water species, like sleeper sharks, also fared poorly, likely due to the trauma of the extreme pressure change. Policy simulations showed that retention bans could reduce shark mortality ...

Greenland sharks also go by the name "sleeper sharks" - a nod to their rather sluggish ways. They swim incredibly slowly, often seeming to just drift through the water, in order to preserve energy.

Greenland sharks, also known as the "sleeper sharks," are one of the longest-living vertebrate species known, with a lifespan of up to 400 years. While they can be found in deep waters around ...