Resurrect Roundworm Frozen Siberian Permafrost 46,000-Years
If reviving a 48,500-year-old zombie virus wasn’t bad enough, scientists managed to resurrect a roundworm (P. kolymaensis) frozen in Siberian permafrost for the past 46,000-years. It survived being buried 131.2-feet beneath the surface in a dormant state known as cryptobiosis, which enabled the roundworm to withstand high temperatures, as well as freezing or extremely salty conditions.



These creatures, also known as nematodes, are typically microscopic, although a few species are visible to the naked eye. They were discovered in permafrost formations along the Kolyma River that also happened to preserve the fossil burrows of arctic gophers that date back 45,839 to 47,769 years before present day. The team has nurtured over 100 generations of P. kolymaensis in the laboratory, with each new generation surviving around 8 to 12 days.

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One can halt life and then start it from the beginning. This a major finding,” he said, adding that other organisms previously revived from this state had survived for decades rather than millennia. To see that the same biochemical pathway is used in a species which is 200, 300 million years away, that’s really striking,” said Teymuras Kurzchalia, professor emeritus at the Max Planck Institute of Molecular Cell Biology and Genetics in Dresden.

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