Wildlife of Britain

The oldest known animal ever recorded depends on whether we’re talking about individual animals with a known lifespan or species with extreme longevity.  Here’s a clear breakdown: By Individual Animal (Documented Age) • Ming the Quahog (clam) 507 years A deep-sea ocean quahog clam, discovered off the coast of the UK near Iceland, born ~1499, died 2006.  Ming the Quahog is considered the longest-lived individual animal ever recorded. • George the Aldabra Tortoise 255 years (claimed) Giant tortoises often live 150–200+ years. George’s age is disputed but reflects the extreme longevity of tortoises. • Jonathan the Seychelles Giant Tortoise 190+ years Born ~1832, still alive as of 2025 on St. Helena. Longest-living known living terrestrial animal. • Greenland Shark 272+ years estimated Not an individual in captivity but age estimated via eye lens radiocarbon dating; slow-growing, long-lived fish species. By Species with Extreme Longevity Some species can live for centuries or mill...