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After spending 24,000 years frozen in Siberia, a microscopic multicellular organism has come back to life, new research shows.
Scientists have unearthed the animal known as bdelloidea (a rotferian found in fresh water and moist soil) from the Alayeza River in the Russian Arctic.
Once thawed, it was able to reproduce asexually, having spent millennia in a frozen state of animation known as cryptobiosis.
Based on previous research, it was believed that these microorganisms could survive frozen for up to 10 years.
However, a new study published Monday in Current Biology suggested that they could keep alive. miles of ao, if not indefinitely.
“The bottom line is that a multicellular organism can freeze and stay that way for thousands of years and then come back to life, the dream of many fiction writers,” Stas Malavin of the Russian Institute told AP. physico-chemical and chemical problems. Soil science biologists.
And he added that more research was needed to see how he does it.
Endurance
Scientists who conducted the study froze and thawed dozens of animals in the lab to examine the process.
Radiocarbon dating determined that the rotpher specimen was between 23,960 and 24,485 years.
Bdelloids are a class of Ropheres that can be found in freshwater environments in different parts of the world.
The name rotfero comes from the Latin (rota, “wheel” and will do, “those who wear”).
These creatures are known for their ability to withstand extreme environments.
They are one of the most radiation resistant Earth, according to the American newspaper The New York Times, which reports that they can also live in low oxygen, starvation, high acidity and years of dehydration.
Other multicellular organisms that come back to life after thousands of years are also known to exist, including a nematode worm, as well as some plants and mosses.
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