Amos and his son Karl-Frederik catch the largest Greenland Shark they’ve ever landed and pull it up 800 metres through a hole in the ice before feeding it to their hungry dogs. “The Greenland shark (Somniosus microcephalus), also known as the gurry shark or grey shark, or by the Inuit name Eqalussuaq, is a large shark of the family Somniosidae (“sleeper sharks”) that is native to the waters of the North Atlantic Ocean around Canada, Greenland, Norway and Iceland. These sharks live farther north than any other shark species. Many of the species’ adaptations are due to it being the only truly sub-Arctic species of shark. They are closely related to the Pacific sleeper shark. This species of the shark holds the world record for having the most toxic meat of any shark.