{"id":23214,"date":"2026-08-21T23:39:32","date_gmt":"2026-08-21T23:39:32","guid":{"rendered":"https:\/\/www.youragecalculator.com\/blog\/?p=23214"},"modified":"2026-08-21T23:39:32","modified_gmt":"2026-08-21T23:39:32","slug":"the-oldest-living-things-on-earth","status":"publish","type":"post","link":"https:\/\/www.youragecalculator.com\/blog\/the-oldest-living-things-on-earth\/","title":{"rendered":"The Oldest Living Things on Earth: Creatures That Defy Aging"},"content":{"rendered":"\n

Some living things outlive entire civilizations. The oldest known organisms on Earth have been alive for thousands of years \u2014 in a few cases tens of thousands \u2014 and they challenge everything we think we know about aging. This guide looks at the record holders, how scientists verify their ages, and what they reveal about the limits of life.<\/p>\n\n\n\n

The Record Holders: Oldest Living Things by Category<\/h2>\n\n\n\n
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Organism<\/th>Type<\/th>Age<\/th>Where<\/th><\/tr><\/thead>
Great Basin bristlecone pine (“Methuselah”)<\/td>Tree<\/td>~4,850 years<\/td>California, USA<\/td><\/tr>\n
Pando (quaking aspen clone)<\/td>Tree colony<\/td>~14,000 years<\/td>Utah, USA<\/td><\/tr>\n
Posidonia oceanica (seagrass clone)<\/td>Plant<\/td>~100,000 years (est.)<\/td>Mediterranean Sea<\/td><\/tr>\n
Greenland shark<\/td>Vertebrate<\/td>~400 years<\/td>North Atlantic<\/td><\/tr>\n
Ocean quahog clam (“Ming”)<\/td>Mollusk<\/td>507 years<\/td>North Atlantic<\/td><\/tr>\n
Black coral<\/td>Coral<\/td>~4,265 years<\/td>Pacific Ocean<\/td><\/tr>\n
Antarctic sponge<\/td>Sponge<\/td>~15,000 years (est.)<\/td>Antarctica<\/td><\/tr>\n
Hydra<\/td>Freshwater animal<\/td>Potentially immortal<\/td>Worldwide<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n

Notice the pattern: the oldest organisms are mostly clonal colonies, corals, and deep-sea animals \u2014 not individual trees or fish you could hold. Clonal organisms can replace every part of themselves over time, which makes defining their “age” surprisingly tricky.<\/p>\n\n\n\n

How Scientists Actually Measure Extreme Ages<\/h2>\n\n\n\n

You can’t ask a clam how old it is. For most record holders, researchers rely on one of three methods:<\/p>\n\n\n\n