Scientists in Russia were thawing a sample of Siberian permafrost, when they found something completely unexpected — a pair of living roundworms that were in a state of suspended animation for more than 46,000 years.
In 2018, Russian researchers revived the two frozen individual nematodes from a fossilized burrow in silt deposits in the Siberian permafrost. It turns out they were in a state of suspended animation for 46,000 years.Scientists in Russia were thawing a sample of Siberian permafrost, when they found something completely unexpected lurking inside — a pair of living roundworms.
That all changed when Anastasia Shatilovich, of the Institute of Physicochemical and Biological Problems in Soil Science RAS in Russia, found them and thawed them out in 2018.Once awakened, the nematodes, both female, didn't miss a beat. They immediately began reproducing asexually in the lab. While other nematodes have been known to enter cryptobiosis for years — or, in some cases, decades — scientists have never before discovered ones that remained in that state for millenniums.
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