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WONDERS! See The Animal That Survived For 24,000 Year

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WONDERS! See The Animal That Survived For 24,000 Year

WONDERS! See The Animal That Survived For 24,000 Year

A microscopic animal has been revived after slumbering in the Arctic permafrost for 24,000 years.

Bdelloid rotifers typically live in watery environments and have an incredible ability to survive. Russian scientists found the creatures in a core of frozen soil extracted from the Siberian permafrost using a drilling rig.

“Our report is the hardest proof as of today that multicellular animals could withstand tens of thousands of years in cryptobiosis, the state of almost completely arrested metabolism,” said Stas Malavin, a researcher at the Soil Cryology Laboratory at the Pushchino Scientific Center for Biological Research in Russia.

Earlier research by other groups had shown that the rotifers could survive up to 10 years when frozen. In a new study, the Russian researchers used radiocarbon dating to determine that the critters they recovered from the permafrost — ground that is frozen year-round, apart from a thin layer near the surface — were about 24,000 years old.

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The study was published in the journal Current Biology on Monday.

It’s not the first time ancient life has been resurrected from a permanently frozen habitat.

Stems of Antarctic moss were successfully regrown from a 1,000-year-old sample that had been covered by ice for about 400 years, and a living champion flower was regenerated from seed tissue, likely stored by an Arctic squirrel, that had been preserved in 32,000-year-old permafrost. Simple worms, called nematodes, were revived from the permafrost from two places in northeastern Siberia, in sediments that were more than 30,000 years old.

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Long-dead but well-preserved mammals, including extinct cave bears and mammoths, have also been unearthed from the permafrost, which is thawing in some places as a result of the climate crisis.

Malavin said that it is highly unlikely bigger life forms could survive being frozen in this way.

Once the rotifer thawed, the creature was able to reproduce, the study said. The tiny invertebrates were also able to feed.

To understand how the creature survived in suspended animation in the frozen ground, the researchers froze and thawed modern-day rotifers living in permafrost regions. They found that the creatures could withstand the formation of ice crystals while they were slowly frozen.

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While not all the rotifers survived the freezing process, the study suggested that the creatures have some mechanism that can can shield their cells and organs from harm at very low temperatures.

WONDERS! See The Animal That Survived For 24,000 Year

WONDERS! See The Animal That Survived For 24,000 Year

 

WONDERS! See The Animal That Survived For 24,000 Year

WONDERS! See The Animal That Survived For 24,000 Year

WONDERS! See The Animal That Survived For 24,000 Year

 

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