The Greenland shark (Somniosus microcephalus), also known as the rubiks shark or gray shark, is a large shark of the family Somniosidae ("sleeper sharks"), closely related to the Pacific and …

Dec 12, 2025 · The Greenland shark is one of the largest cartilaginous fishes. It can reach a length of 7 metres (23 feet) and a weight of 1,025 kg (2,260 pounds) when fully grown, but …

On top of being the longest living shark, the Greenland shark is also one of the largest sharks. They rival the Great White Shark in terms of size, measuring up to 7m in length.

The Greenland shark is the world’s longest living vertebrate. It can live for 400 years— twice the age of the longest-living land animal, the giant tortoise.

The Greenland shark (Somniosus microcephalus), also known as the gurry shark or grey shark, is a large shark of the family Somniosidae ("sleeper sharks"), closely related to the Pacific and …

But even at the lower end of the estimates, a 272-year lifespan makes the Greenland shark the longest-lived vertebrate. One theory to explain this long lifespan is that the Greenland shark …

A gigantic, heavy-bodied sleeper shark with a short, round snout, heavy cylindrical body, and small precaudal fins. It has rough skin with denticles with strong hook-like erect cusps.

The rare and elusive Greenland shark is one of the largest sharks in the ocean. Though slow moving, they are top predators. Learn more and see how to protect them.

Greenland sharks feed on surprisingly speedy prey, including fish, seals, squid and seabirds. Others should be careful about eating Greenland sharks, though. Their meat is toxic when …

Jan 5, 2026 · The Greenland shark, the longest-living vertebrate, inhabits the dim, frigid depths of the Arctic Ocean. Despite its extreme lifespan, this study finds that its vision remains intact …