* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, August 29, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    ‘Netflix House’ entertainment complexes are coming. Here’s when they open – Los Angeles Times

    Exciting News: Netflix’s House Entertainment Complexes Are Opening Soon!

    ‘Big Brother’s’ Rylie Jeffries Finally Speaks Out on Katherine Woodman Controversy – El Paso Inc.

    Big Brother’s Rylie Jeffries Finally Speaks Out on Katherine Woodman Controversy

    ‘SNL’ Parts Ways With Emil Wakim Amid Rumored Season 51 Cast Shakeup – yahoo.com

    SNL Shakes Up Season 51 Cast with Emil Wakim’s Surprising Exit

    Do you have a favorable or an unfavorable opinion of Taylor Swift? – YouGov

    Do You Love Taylor Swift or Not? Share Your Thoughts!

    Upload Season 4 Review – yahoo.com

    Upload Season 4 Review: A Thrilling New Chapter Unveiled

    ‘The Roses’ review: Olivia Colman, Benedict Cumberbatch sparkle in dark comedy – Yakima Herald-Republic

    The Roses’ Review: Olivia Colman and Benedict Cumberbatch Shine in Dark Comedy Delight

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    13 Top Technology Trends (2025) – Exploding Topics

    13 Game-Changing Technology Trends to Watch in 2025

    Japan’s legacy LCD and chip technology find new home in India – Nikkei Asia

    How Japan’s Breakthrough LCD and Chip Technologies Are Driving Innovation in India

    ITSWC 2025: Thursday sessions guide – Traffic Technology Today

    Your Ultimate Guide to Thursday Sessions at ITSWC 2025

    MC Machinery Technology Summit Showcases Manufacturing Innovations – Modern Machine Shop

    MC Machinery Technology Summit Unveils Cutting-Edge Manufacturing Innovations

    US-ROK Technology Cooperation Faces Rising Tensions – The National Interest

    Rising Tensions Put US-South Korea Technology Partnership to the Test

    The Role of AI and Technology in Shaping the Future of Interactive Entertainment – Technology Org

    How AI and Technology Are Transforming the Future of Interactive Entertainment

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    ‘Netflix House’ entertainment complexes are coming. Here’s when they open – Los Angeles Times

    Exciting News: Netflix’s House Entertainment Complexes Are Opening Soon!

    ‘Big Brother’s’ Rylie Jeffries Finally Speaks Out on Katherine Woodman Controversy – El Paso Inc.

    Big Brother’s Rylie Jeffries Finally Speaks Out on Katherine Woodman Controversy

    ‘SNL’ Parts Ways With Emil Wakim Amid Rumored Season 51 Cast Shakeup – yahoo.com

    SNL Shakes Up Season 51 Cast with Emil Wakim’s Surprising Exit

    Do you have a favorable or an unfavorable opinion of Taylor Swift? – YouGov

    Do You Love Taylor Swift or Not? Share Your Thoughts!

    Upload Season 4 Review – yahoo.com

    Upload Season 4 Review: A Thrilling New Chapter Unveiled

    ‘The Roses’ review: Olivia Colman, Benedict Cumberbatch sparkle in dark comedy – Yakima Herald-Republic

    The Roses’ Review: Olivia Colman and Benedict Cumberbatch Shine in Dark Comedy Delight

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    13 Top Technology Trends (2025) – Exploding Topics

    13 Game-Changing Technology Trends to Watch in 2025

    Japan’s legacy LCD and chip technology find new home in India – Nikkei Asia

    How Japan’s Breakthrough LCD and Chip Technologies Are Driving Innovation in India

    ITSWC 2025: Thursday sessions guide – Traffic Technology Today

    Your Ultimate Guide to Thursday Sessions at ITSWC 2025

    MC Machinery Technology Summit Showcases Manufacturing Innovations – Modern Machine Shop

    MC Machinery Technology Summit Unveils Cutting-Edge Manufacturing Innovations

    US-ROK Technology Cooperation Faces Rising Tensions – The National Interest

    Rising Tensions Put US-South Korea Technology Partnership to the Test

    The Role of AI and Technology in Shaping the Future of Interactive Entertainment – Technology Org

    How AI and Technology Are Transforming the Future of Interactive Entertainment

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Nematode resurrected from Siberian permafrost laid dormant for 46,000 years

July 27, 2023
in Science
Nematode resurrected from Siberian permafrost laid dormant for 46,000 years
Share on FacebookShare on Twitter

A picture of the newly thawed nematode under the microscope.

Researchers isolated the newly described nematode (Panagrolaimus kolymaensis) from permafrost in 2018, but its age and species remained unclear. (Image credit: Shatilovich et al, 2023, PLOS Genetics; (CC-BY 4.0))

A microscopic worm survived in the Siberian permafrost for a record-breaking 46,000 years, scientists have discovered — tens of thousands of years longer than previously resurrected worms.

The ancient roundworm, or nematode, belongs to the newly described species Panagrolaimus kolymaensis. Researchers discovered it nestled inside a fossilized squirrel burrow that was extracted from permafrost near the Kolyma River, in the northeastern Arctic, in 2002. Scientists resuscitated the frozen nematode in 2018, but its age and species remained unclear.

Now, a study published Thursday (July 27) in the journal PLOS Genetics may have found answers to these questions. “Survival in extreme environments for prolonged periods is a challenge that only a few organisms are capable of,” researchers wrote in the study. “Here, we show that a soil nematode Panagrolaimus kolymaensis suspended life for 46,000 years in the Siberian permafrost.”

Organisms such as nematodes and tardigrades can enter a dormant state — a metabolic process known as “cryptobiosis” — in response to being frozen or extremely dehydrated, intermediary states known as cryobiosis and anhydrobiosis, respectively. In both cases, the critters reduce their oxygen consumption and the amount of heat produced by metabolic processes to undetectable levels.

Related: ‘Prehistoric’ mummified bear discovered in Siberian permafrost isn’t what we thought 

The newly described nematode entered cryptobiosis in the late Pleistocene (2.6 million to 11,700 years ago), an epoch that included that last ice age. The permafrost that imprisoned the tiny creature had not thawed since then, meaning this is the longest recorded cryptobiosis in nematodes — by tens of thousands of years — according to the study. Until now, the Antarctic nematode species Plectus murrayi and a Tylenchus polyhypnus specimen held this record; the former was frozen in moss for 25.5 years and the latter was desiccated in a herbarium for 39 years.

A picture of the fossilized squirrel burrow from which researchers isolated the newly described nematode.

Researchers discovered P. kolymaensis in a fossilized squirrel burrow near the Kolyma River, in the northeastern Arctic. (Image credit: Shatilovich et al, 2023, PLOS Genetics; (CC-BY 4.0))

The researchers analyzed the newly described nematode’s genes and compared them to those of Caenorhabditis elegans roundworms, which were the first multicellular organisms to have their entire genome sequenced. In the absence of established genetic methods to study the recently thawed worm, C. elegans provided a well-studied model organism for comparison. The analysis revealed several shared genes linked to cryptobiosis.

To find out exactly how nematodes can survive for such long periods, the researchers got a new group of P. kolymaensis and C. elegans worms and mildly desiccated them in the lab. As the worms entered anhydrobiosis, the team observed a spike in the production of a sugar called trehalose, which they think could help protect the nematodes’ cell membranes from dehydration. They then froze the worms at minus 112 degrees Fahrenheit (minus 80 degrees Celsius) and found that desiccation improved the survival rates of both species. Worms that were frozen at this temperature without being dehydrated beforehand died instantly, according to the study. 

Equipped with molecular pathways to cope with Arctic conditions, nematodes have evolved to survive in these hibernating states for many thousands of years, the researchers concluded. “Our findings indicate that by adapting to survive [in a] cryptobiotic state for short time frames in environments like permafrost, some nematode species gained the potential for individual worms to remain in the state for geological timeframes,” they wrote in the study.

This means that extinct nematode species could be revived if they escape from the permafrost, the researchers noted. “Drastic changes” to the environment in which they lay dormant, including fluctuations in temperature and natural radioactivity, can wake ancient nematodes from their deep slumber, the researchers noted. 

Stay up to date on the latest science news by signing up for our Essentials newsletter.

Sascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe. Besides writing, she enjoys playing tennis, bread-making and browsing second-hand shops for hidden gems.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Live Science – https://www.livescience.com/planet-earth/arctic/nematode-resurrected-from-siberian-permafrost-laid-dormant-for-46000-years

Tags: Nematoderesurrectedscience
Previous Post

Listen to a star ‘twinkle’ in world-first audio simulation

Next Post

City-size comet headed toward Earth ‘grows horns’ after massive volcanic eruption

Lake Tanganyika cichlids partition habitat by time – Nature

Lake Tanganyika Cichlids Divide Their Habitat by Time for Survival

August 29, 2025
Ancient Life “Wakes Up” After 100 Million Years Under the Seafloor – IFLScience

Ancient Life Resurfaces After 100 Million Years Hidden Beneath the Seafloor

August 29, 2025
Golden Apple: Seward science teacher helps students soar – KOLN | Nebraska Local News, Weather, Sports | Lincoln, NE

Golden Apple Award: Seward Science Teacher Inspires Students to Soar

August 29, 2025
Maverick Lifestyle Inc.’s Beta Climbs After Market Volatility getLinesFromResByArray error: size == 0 – thegnnews.com

Maverick Lifestyle Inc.’s Beta Climbs After Market Volatility getLinesFromResByArray error: size == 0 – thegnnews.com

August 29, 2025
13 Top Technology Trends (2025) – Exploding Topics

13 Game-Changing Technology Trends to Watch in 2025

August 29, 2025
With Micah Parsons trade following Luka Dončić blockbuster, Dallas sports fans continue to have miserable year – CBS Sports

Micah Parsons Trade After Luka Dončić Blockbuster Leaves Dallas Sports Fans Reeling

August 29, 2025
Mismatches will not halt Women’s Rugby World Cup momentum, insist organisers – The Guardian

Women’s Rugby World Cup Momentum Unstoppable Despite Challenges, Organisers Insist

August 29, 2025
Europe Is Spending Big on Defense. Will That Help Its Ailing Economy? – The New York Times

Europe Is Spending Big on Defense. Will That Help Its Ailing Economy? – The New York Times

August 29, 2025
‘Netflix House’ entertainment complexes are coming. Here’s when they open – Los Angeles Times

Exciting News: Netflix’s House Entertainment Complexes Are Opening Soon!

August 29, 2025
CDC director’s firing prompts health concerns : The News4 Rundown – NBC4 Washington

Firing of CDC Director Ignites Nationwide Health Alarm

August 29, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (796)
  • Economy (815)
  • Entertainment (21,694)
  • General (16,739)
  • Health (9,856)
  • Lifestyle (829)
  • News (22,149)
  • People (816)
  • Politics (822)
  • Science (16,025)
  • Sports (21,314)
  • Technology (15,796)
  • World (797)

Recent News

Lake Tanganyika cichlids partition habitat by time – Nature

Lake Tanganyika Cichlids Divide Their Habitat by Time for Survival

August 29, 2025
Ancient Life “Wakes Up” After 100 Million Years Under the Seafloor – IFLScience

Ancient Life Resurfaces After 100 Million Years Hidden Beneath the Seafloor

August 29, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version