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(8,361 posts)
Fri Jul 28, 2023, 05:16 PM Jul 2023

46,000-Year-Old Worm Possibly Revived from Siberian Permafrost

An international team of scientists says nematodes found in Siberian permafrost are 46,000 years old and survived using techniques similar to those of a modern lab favorite

By Meghan Bartels on July 27, 2023

At first glance, nematodes are unassuming roundworms—but don’t underestimate them.

In 2018 scientists announced they had discovered and revived two types of microscopic nematodes found in the Siberian permafrost, estimating they may have been 42,000 years old. Now these roundworms are the subject of more research, which posits that one of these nematode varieties represents a new species, dubbed Panagrolaimus kolymaensis for the Kolyma River where they were found. The new research, published on July 27 in the journal PLOS Genetics, also compares the Siberian worm’s survival mechanism with one found in another nematode species, Caenorhabditis elegans—a model organism used in laboratories around the world. The researchers further claim that the P. kolymaensis worms are actually 46,000 years old, based on their dating of plant matter found with these nematodes.

“The radiocarbon dating is absolutely precise, and we now know that they really survived 46,000 years,” says study co-author Teymuras Kurzchalia, a cell biologist emeritus at the Max Planck Institute of Molecular Cell Biology and Genetics in Dresden.

Excerpt: If the worms really are as old as the study suggests, they would be by far the most stunning examples of what scientists call cryptobiosis—an organism’s ability to suspend its own metabolism in poor conditions.

( Hat tip to the roundworm! )

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46,000-Year-Old Worm Possibly Revived from Siberian Permafrost (Original Post) BeckyDem Jul 2023 OP
Maybe it will crawl all the way to Moscow, House of Roberts Jul 2023 #1
That would be a plus! BeckyDem Jul 2023 #4
Here we go... Effete Snob Jul 2023 #2
lol +1 BeckyDem Jul 2023 #3
Sounds like the beginning of a Hollywood disaster movie. yonder Jul 2023 #5
I agree. But it's too late, BeckyDem Jul 2023 #6
This literally.. Ollie Garkie Jul 2023 #7


(9,766 posts)
5. Sounds like the beginning of a Hollywood disaster movie.
Fri Jul 28, 2023, 05:54 PM
Jul 2023

Don’t we have enough worries about things thawing out?

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