![]() ![]() ![]() This new species of nematode, named Panagrolaimus kolymaensis, beats that record of dormancy by tens of thousands of years. The previous record for resuscitation of a nematode was held by an Antarctic species that started wriggling again after a few dozen years. In 2021, researchers announced that they had resurrected ancient bdelloid rotifers, microscopic multicellular animals, after 24,000 years in Siberian permafrost. Scientists have long known that some microscopic creatures are able to pause their lives to survive hostile environments, plunging into the deepest of slumbers by slowing their metabolism to undetectable levels in a process called cryptobiosis.Īs early as 1936, a viable crustacean several thousand years old was discovered buried in the permafrost east of Russia’s Lake Baikal. A female microscopic roundworm that spent the last 46,000 years in suspended animation deep in Siberian permafrost was revived and began having babies in a laboratory dish. ![]()
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