Russian scientists revive the animal after 24 thousand years in permafrost

The microscopic multicellular animal returned to life after 24 thousand years in the permafrost of Siberia, reports Air force.

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This is evidenced by recent studies.

Scientists have unearthed an animal known as the bdelloid rotifer in the Alazeya River in the Russian Arctic.

After thawing, the rotifers were active, fed and even began to reproduce asexually (through parthenogenesis).

Radiocarbon dating showed their age to be between 23 and 960 years old.

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Previously, it was already possible to “revive” rotifers, but not so ancient.

A new study published in Current Biology suggests they can be added to the list of organisms that can survive indefinitely in cryptobiosis, a condition in which metabolism almost completely stops.

“The conclusion is that a multicellular organism can be frozen and stored that way for thousands of years and then brought back to life. This is the dream of many science fiction writers,” said Stas Malavin from the Russian Institute of Physicochemical and Biological Problems of Soil Science.

Scientists believe that this indicates a certain protective mechanism that was developed by the ancient relatives of rotifers.

To find out how freezing and thawing works, the researchers experimented with dozens of animals found. But more research is needed, Malavin said.

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Rotifers are one of the most primitive multicellular animals. At the same time, they are incredibly tenacious.

According to the New York Times, they are among the most radioactively resistant animals on Earth, and can also withstand low oxygen levels, hunger, high acidity, and years of dehydration.

Other multicellular organisms that return to life after thousands of years have also been reported, including nematodes (roundworms) and some species of plants and mosses.

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