Exclusive Discovery in Antarctica: Ancient DNA Discovered 1 Million Years Ago In Antarctica
Ancient DNA Discovered 1 Million Years Ago In Antarctica
Ancient DNA Discovered 1 Million Years Ago In Antarctica
As we are of the types Attention is constantly declining. However, it can be difficult to understand how long life has been on Earth. However, try to put a twist on it: scientists have unearthed fragments of DNA dating back a million years.
These fragments of organic matter can be found beneath the floor of the Scotia Sea, north of Antarctica, and are invaluable in charting the history of the region: mapping what lived in the ocean and during what kind of time it lived. extends.
HIV DNA Found in Antartica :
Technically known as HIV , the recovered samples of DNA (for ancient sedimentary DNA) are likely to prove useful in ongoing efforts to understand how climate change could affect Antarctica in the future.
“This includes by far the oldest HIV DNA certified marine vessel yet Marine ecologist Linda Armbrecht says: from the University of Tasmania in Australia.
HIV DNA is found in many environments, including underground caves and subarctic permafrost that was worth HIV The history of DNA dates back 400,000 and 650,000 years, respectively.
Low temperatures, low oxygen levels and a lack of ultraviolet radiation make polar marine environments, like the Scotia Sea, wonderful places HIV DNA remains intact, waiting for us to find it.
The recovered DNA was extracted from the ocean floor in 2019 and underwent a comprehensive contamination control process to ensure the accuracy of the age markers embedded in the material.
Carbon Dating Back To 540,000 :
Among other finds, the team discovered diatoms (single-celled organisms) dating back to 540,000 years ago. All of this helps to give us an overview of how this part of the world has evolved over long periods of time.
The team was able to link diatom abundance to warmer periods; the most recent in the Scotia Sea was about 14,500 years ago. This increased the general activity of marine life throughout the Antarctic region.
“This is an interesting and important change that is associated with a rapid global rise in sea levels and massive ice loss in Antarctica due to natural warming. Geologist Michael Weber says: from the University of Bonn in Germany.
This latest study is evidence that these HIV DNA technologies could be instrumental in rebuilding ecosystems over hundreds of thousands of years, giving us a new level of insight into how the oceans are changing.
Scientists are constantly getting better at removing fragments of ancient DNA from Earth and removing the “noise” and interference that has been left behind by all modern DNA in existence since then to gain an authentic view of the past.
Understanding more about past climate changes and how the ocean ecosystem responded means more accurate models and predictions of what could happen next around Antarctica.
“Antarctica is one of the most vulnerable regions to climate change on Earth, and studying the past and present reactions of this polar marine ecosystem to environmental change is a matter of urgency,”
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