New life forms found under sub-glacial Antarctic lake
Scientists from the British Antarctic Survey have found life in mud samples at the bottom of a sub-glacial lake in Antarctica. They found microbes dating back almost 100,000 years as well as organisms previously unknown to science.
The research team from the British Antarctic Survey and the universities of Northumbria and Edinburgh made their astonishing discovery at Lake Hodgson on the Antarctic Peninsula, and published their findings online in the journal Diversity.
During the last Ice Age the lake was covered by more than 400 meters of ice, but the ice sheet is becoming more exposed and is retreating and melting at an unprecedented rate. Due to rising temperatures in Antarctica, the emerging sub-glacial lake now has a thin covering of just 3 to 4 meters.
The team used a “clean core” drill style and used sterilized equipment to avoid possible contamination. They burrowed into and sampled sediments at the bottom of the lake, which is 93 meters deep and about 1.5 kilometers long by 1.5 kilometers wide.
The lake was believed to be too harsh an environment for any forms of life to survive, but the team found that many species of microbes were thriving in the extreme climate of the lake’s sediments.
The top few centimeters of the core contained current and recent organisms, but the layers of mud at the bottom represent a time capsule containing the DNA of microbes that have lived there throughout the millennia. Once the core reached a depth of 3.2 meters, the microbes dated back nearly 100,000 years.
“The fact that these organisms have survived in such a unique environment could mean they have developed in unique ways which could lead to exciting discoveries for us. This is the early stage and we now need to do more work to further investigate these life forms,” lead researcher David Pearce said in a statement.
The team found life in the form of fossil DNA, including a range of extremophiles, a species adapted to the most extreme environments, which use a variety of chemical methods to sustain life without oxygen.
One of the DNA sequences was related to one of the most ancient forms of life known on earth, but over 20 percent of organisms are previously unknown.
Twenty-three percent of this diversity could only be identified to “unidentified bacterium.” Many of these species are likely to be completely new to science.
Read the full article at: rt.com
Bone-eating worms thrive in the Antarctic
Antarctic Lake Vostok ’might have fish’
Antarctica Meteorites Contain Supernova Dust
Confirmed: There’s life in buried Antarctic lake
Extreme Drilling : Searching for Life Under the Antarctic Ice Sheet
Woolly mammoth with flowing blood found for first time, Russian scientists claim
Latest News from our Front Page
Muhammad Art Exhibit: Two gunmen dead after firing at security guard in Texas shootout
A prize of $10,000 was offered by an American group to the 'best' cartoon depicting the religious figure
Two gunmen were shot dead after they opened fire at a contest for cartoon images of the Islamic prophet Muhammad last night.
A security guard was also wounded when gunfire broke out as the men drove up to the exhibition in Texas at around ...
An Eye For Odin
The Anglo-Saxon Sutton Hoo helmet is a religious artefact dedicated to Woden the one eyed god of war. Recent research indicates that numerous other archeaological artefacts also provide evidence that one eye on various figures has been deliberately removed as part of a Woden ritual.
Read the original essay by Neil Price and Paul Mortimer here:
Music: Faunus Amadeus Loki - Strange ...
Ed Miliband: "As a friend of Israel and a Jew, I'm a proud member of this community" & "The Jewish Manifesto"
Editor's comment: With just a few days to go to the British election, here are a few tidbits that the English voter might want to know about concerning the leader of the Labour party, Ed Miliband.
Labour Leader Ed Miliband on the Board of Deputies' Jewish Manifesto
By Ed Miliband, Leader of the Opposition in the UK. (Or should that be the ...
"Sweden is ruled by unelected policy plotters"
Editor's Comment: As usual, the power in Sweden is behind the scenes, unelected and weaved into the bureaucracy so that Swedes have no control or influence over what happens in the country.
Sweden has long been seen as the epitome of a healthy democracy. But in this week's debate article, three researchers argue that an increase in unelected behind-the-scenes operators is ...
Israel to airlift 25 babies born to surrogates out of Nepal
Ya'ari is one of 26 babies airlifted by the Israeli government and brought to Israel to be with their parents after the Nepal earthquake. (Derek Stoffel/CBC)Israel said Sunday it plans to airlift 25 infants from quake-hit Nepal born to surrogate mothers, along with their Israeli parents, most of them homosexual couples.
Officials said Israel was sending a military delegation to offer ...
|More News » |