Greenland Sharks Can Weigh Over 1,400 Kilograms

Despite their mass, they swim at some of the slowest sustained speeds recorded for sharks.

Combining that mass with multi-century lifespans creates a biological presence that accumulates across centuries, making each shark a long-term apex fixture in Arctic ecosystems.

Few vertebrates pair such extreme body mass with such extreme longevity, challenging traditional life-history tradeoff models that link size with faster growth.