Microscopic animal resurrects and reproduces after being frozen for 24,000 years – Science & Health

the most read

A microscopic animal has come back to life after being frozen for 24,000 years in Siberia and has managed to reproduce itself, Russian scientists announced.


A microscopic animal called bdeloid rotifer has come back to life after being frozen for 24,000 years in Siberia and has managed to reproduce, Russian scientists announced today.

The finding raises questions about the mechanisms used by this multicellular animal – which measures about half a millimeter in length and lives in freshwater environments – to withstand such a latency period, according to research co-author Stas Malavin.

According to Malavin, rotifers may be added to the list of multicellular organisms that appear to be able to survive indefinitely thanks to cryptobiosis, “a state in which metabolism is almost completely stopped.”

The scientific team collected samples from the Alazeia River in Siberia and used the radiocarbon dating method to determine that the age of these specimens is between 23,960 and 24,485 years.

Once thawed, the rotifer bdeloid managed to reproduce through parthenogenesis, a type of asexual reproduction in which the embryo develops without fertilization.

In other multicellular organisms, the case of a 30,000-year-old nematode worm that has resurrected has been previously reported. Mosses and plants also regenerate after thousands of years on ice.

The results of the discovery announced today were published in the journal Current Biology.

find it out as
Issues of the Day

We publish for if, in three different periods of the day, the best of national and international news. The articles of Issues of the Day are ordered chronologically on here , so you don’t miss any of the best that SÁBADO prepares for you. You can also browse previous editions, of the day or of the week

Source: SÁBADO by www.sabado.pt.

*The article has been translated based on the content of SÁBADO by www.sabado.pt. If there is any problem regarding the content, copyright, please leave a report below the article. We will try to process as quickly as possible to protect the rights of the author. Thank you very much!

*We just want readers to access information more quickly and easily with other multilingual content, instead of information only available in a certain language.

*We always respect the copyright of the content of the author and always include the original link of the source article.If the author disagrees, just leave the report below the article, the article will be edited or deleted at the request of the author. Thanks very much! Best regards!