World’s Oldest DNA Found in Greenland Reveals Arctic’s Lost Nature

World’s Oldest DNA Found in Greenland Reveals Arctic’s Lost Nature
World’s Oldest DNA Found in Greenland Reveals Arctic’s Lost Nature

Political Editor with files from sputniknews:

Arabnews24.ca:Thursday 8 December 2022 01:35 AM: https://sputniknews.com/20221208/worlds-oldest-dna-found-in-greenland-reveals-arctics-lost-nature-1105175149.html

World’s Oldest DNA Found in Greenland Reveals Arctic’s Lost Nature

World’s Oldest DNA Found in Greenland Reveals Arctic’s Lost Nature

Some two million years ago, now barren and inhospitable Greenland lived up to its name, with elephant-like mastodons roaming its green forests. 08.12.2022, Sputnik International

2022-12-08T06:32+0000

2022-12-08T06:32+0000

2022-12-08T06:32+0000

science & tech

greenland

denmark

nature

archeology

dna

/html/head/meta[@name='og:title']/@content

/html/head/meta[@name='og:description']/@content

https://cdnn1.img.sputniknews.com/img/104368/47/1043684782_0:30:1320:773_1920x0_80_0_0_adfc882f9a94d8b0541b628efcfdd957.jpg

The world’s oldest known fragments of DNA have been found in the permafrost of Cape Copenhagen at the northern edge of Greenland, offering an extraordinary glimpse at the extraordinary ancient ecosystem of the world’s largest island. The analyzed genetic material dates back at least two million years, which is nearly twice as old as the mammoth DNA from Siberia which was the previous record holder.The samples, gathered from more than 130 species ranging from giant mastodons to ants and plants, and identified after several years of painstaking research, showed that Greenland, today one of the world’s most desolate landscapes of ice glaciers and snow-covered mountains, was once covered by a forest of poplar and birch trees inhabited by wildlife such as reindeer, rodents and geese, and washed by warm coastal waters which provided a home to marine species such as horseshoe crabs and green algae. The reconstructed ecosystem has no modern analogue, the researchers said, describing it as a “mix between species that you don't see living together anywhere in the world.,”Extracting DNA from sediment allows researchers to track the ecology and evolution of prehistoric biological communities. It was pioneered by Danish researchers from the Lundbeck Foundation Geogenetics Center at the University of Copenhagen and relies on the binding of ancient DNA to mineral surfaces. In the early 2000s this method was tested on a chunk of Siberian permafrost and facilitated the extraction of DNA from plants such as willows and daisies which lived 400,000 years ago.In addition to making us more aware of the past, the discovery can also contribute to future research, the research team stressed. According to Eske Willerslev, professor of genetics at the University of Copenhagen, the temperatures two million years ago were higher than those today. Furthermore, they were similar to the environment and climate the world is moving towards today due to global warming, he emphasized.It can be estimated that the temperature in Greenland back then was between 11 and 19 degrees warmer than today, and therefore the two million-year-old ecosystem in North Greenland also provides a detailed insight into how nature reacted to climate change.According to him, this is both “bad” and “more uplifting” news. The bad news is that the human ability to predict changes in the environment is “extremely poor.” The more optimistic news is that the discovered DNA also provides us with a “genetic map” of how organisms have naturally adapted to climate change.The researchers admitted that still older DNA may be found during two expeditions to Northern Canada the coming summer. There, sediments between two and four million years old are found.

https://sputniknews.com/20221116/greenland-ice-melting-six-times-faster-than-thought-danish-researchers-say-1104271094.html

https://sputniknews.com/20221122/greenland-ice-getting-darker-melting-faster-due-to-pigmented-algae-1104523697.html

greenland

denmark

Sputnik International

feedback@sputniknews.com

+74956456601

MIA „Rosiya Segodnya“

2022

Igor Kuznetsov

Igor Kuznetsov

News

en_EN

Sputnik International

feedback@sputniknews.com

+74956456601

MIA „Rosiya Segodnya“

1920

1080

true

1920

1440

true

https://cdnn1.img.sputniknews.com/img/104368/47/1043684782_126:0:1194:801_1920x0_80_0_0_bd948d4fa8228ab43d9ee2436d4cc2ab.jpg

1920

1920

true

Sputnik International

feedback@sputniknews.com

+74956456601

MIA „Rosiya Segodnya“

Igor Kuznetsov

danish realm, world's largest island, ancient biology, prehistoric wildlife, global warming, world's oldest dna

danish realm, world's largest island, ancient biology, prehistoric wildlife, global warming, world's oldest dna

Igor Kuznetsov

Some two million years ago, now barren and inhospitable Greenland lived up to its name, with elephant-like mastodons roaming its green forests.

The world’s oldest known fragments of DNA have been found in the permafrost of Cape Copenhagen at the northern edge of Greenland, offering an extraordinary glimpse at the extraordinary ancient ecosystem of the world’s largest island.

The analyzed genetic material dates back at least two million years, which is nearly twice as old as the mammoth DNA from Siberia which was the previous record holder.

The samples, gathered from more than 130 species ranging from giant mastodons to ants and plants, and identified after several years of painstaking research, showed that Greenland, today one of the world’s most desolate landscapes of ice glaciers and snow-covered mountains, was once covered by a forest of poplar and birch trees inhabited by wildlife such as reindeer, rodents and geese, and washed by warm coastal waters which provided a home to marine species such as horseshoe crabs and green algae. The reconstructed ecosystem has no modern analogue, the researchers said, describing it as a “mix between species that you don't see living together anywhere in the world.,”

Extracting DNA from sediment allows researchers to track the ecology and evolution of prehistoric biological communities. It was pioneered by Danish researchers from the Lundbeck Foundation Geogenetics Center at the University of Copenhagen and relies on the binding of ancient DNA to mineral surfaces. In the early 2000s this method was tested on a chunk of Siberian permafrost and facilitated the extraction of DNA from plants such as willows and daisies which lived 400,000 years ago.

In addition to making us more aware of the past, the discovery can also contribute to future research, the research team stressed. According to Eske Willerslev, professor of genetics at the University of Copenhagen, the temperatures two million years ago were higher than those today. Furthermore, they were similar to the environment and climate the world is moving towards today due to global warming, he emphasized.

It can be estimated that the temperature in Greenland back then was between 11 and 19 degrees warmer than today, and therefore the two million-year-old ecosystem in North Greenland also provides a detailed insight into how nature reacted to climate change.

“This tells us that when we see these climate changes, which we are also experiencing today, nature reacts very unpredictably. No one would have predicted that it would turn out like this,” Willerslev told Danish media.

According to him, this is both “bad” and “more uplifting” news. The bad news is that the human ability to predict changes in the environment is “extremely poor.” The more optimistic news is that the discovered DNA also provides us with a “genetic map” of how organisms have naturally adapted to climate change.

The researchers admitted that still older DNA may be found during two expeditions to Northern Canada the coming summer. There, sediments between two and four million years old are found.

Get the latest news delivered to your inbox

Follow us on social media networks

NEXT Tyre Nichols family demand justice on eve of funeral
 
c 1976-2021 Arab News 24 Int'l - Canada: كافة حقوق الموقع والتصميم محفوظة لـ أخبار العرب-كندا
الآراء المنشورة في هذا الموقع، لا تعبر بالضرورة علي آراء الناشرأو محرري الموقع ولكن تعبر عن رأي كاتبيها
Opinion in this site does not reflect the opinion of the Publisher/ or the Editors, but reflects the opinion of its authors.
This website is Educational and Not for Profit to inform & educate the Arab Community in Canada & USA
This Website conforms to all Canadian Laws
Copyrights infringements: The news published here are a feed from different media, if there is any concern,
please contact us: arabnews AT yahoo.com and we will remove, rectify or address the matter.