Skip to main content

THOUSANDS OF NEW SPECIES FOUND IN ANTARCTIC LAKE LAKE CUT OFF FROM THE WORLD FOR 15 MILLION YEARS



In a lake cut off from the world for maybe as much as 15 million years, beneath 2.4 miles of Antarctic glacier ice, scientists have discovered as many as 3,507 different species representing everything from bacteria and fungi to, maybe, even more complex multicellular life.


In 1956, Russian scientists set up the Vostok research station on a relatively flat patch of ice in the heart of Antarctica’s eastern ice sheet. 

Research soon showed that the reason the terrain was so smooth was because the camp was resting far above a giant lake—subglacial Lake Vostok. Starting around 35 million years ago, ancient climate change turned Antarctica from a green landscape into an icy one. 

The change in climate trapped Lake Vostok beneath the growing East Antarctic Ice Sheet, and, as the sea receded, the lake was cut off from the ocean. 

Two decades ago, Russian scientists began the long project of drilling down into Lake Vostok, a mission they finally completed in February 2012. 

With the drilling done, the work of trying to figure out if anything is alive down there began.


Scientists working with water from Lake Vostok have found genetic material that they think represents up to 3,507 different species, they report in a recent paper. 

The genetic material came from lake water that had frozen to the bottom of the Antarictic glacier. 

Comparing the genetic material against a database of species from around the world that have had their genes sequenced the scientists say that more than a thousand of these line up with known lifeforms. 

The identified species were mostly bacteria, though there were also some eukaryotes (mostly fungi), and there were two species of archaea. 

NBC’s Alan Boyle describes what the g enes might mean: The sequences included close matches for various types of fungi as well as arthropods, springtails, water fleas and a mollusk. 

What’s more, some of the bacteria from the sample are typically found in fish guts — suggesting that the fish they came from may be swimming around in the lake. 

…”While the current conditions are different than earlier in its history, the lake seems to have maintained a surprisingly diverse community of organisms,” the researchers wrote. 

“These organisms may have slowly adapted to the changing conditions in Lake Vostok during the past 15-35 million years as the lake converted from a terrestrial system to a subglacial system.” 

A significant number of the sequences were linked to organisms that live around deep-sea hydrothermal vents, suggesting that such features exist at the bottom of Lake Vostok as well. 

“Hydrothermal vents could provide sources of energy and nutrients vital for organisms living in the lake,” the researchers said. 

One of the scientists who worked on the study, Scott Rogers, explained to NBC’s Boyle that the fact that other genetic sequences didn’t line up with anything we’ve seen before doesn’t necessarily mean that these are entirely new species living down in subglacial Lake Vostok. 

Rogers says that though some of the lifeforms down there will probably be brand new, some of them are probably just things we already know about but whose genes haven’t been studied in-depth and put in the particular database the researchers used. 

If these findings hold up and if there is life in Lake Vostok that is truly unique on Earth, the finding would be a testament to the hardiness of life. 

It would be a reassurance that life can persist in some of the harshest conditions and an encouraging finding for those looking for life elsewhere in the universe.


Comments

Popular posts from this blog

Iran Killing Command: The use of firearms in dealing with protesters

The document you see on the image is the order of the commander of the Tehran repressive force to all the units based in the city.

Based on this agenda, the mercenaries of the corrupt government Islamic Republic of Iran have been allowed to use firearms in the event of any protest movement against people by the regime.
This is a murder command.
The repressive force of the law, known to the world's famous police and guardians, should protect the lives of its citizens, by freeing their mercenaries, they allow them to murder Iranians who are protesting the corruption in the government and you have the important message that if you come to the streets in protest of corruption and torture and massacre, we will kill you.
Because, according to criminal Khomeini, maintenance of the system is obligatory.
A corrupt government that is so hideous that spend billions of dollars from the national treasury and popular capitalto the suppression of its people and the countries of the region, must be ov…

Armenian protesters block traffic, railways & airport as protest leader loses PM bid

Anti-government protesters disrupted traffic in Armenia’s capital, blocking railways and roads leading to Yerevan International Airport, after the parliament voted against opposition leader Nikol Pashinyan’s bid for interim PM.
Protesters managed to block streets connecting downtown Yerevan to residential districts, disrupting transportation in Armenia’s capital, footage from the scene shows. 
Yerevan’s metro system has also been paralyzed as demonstrators sit on the tracks, preventing trains from passing.
Meanwhile, protesters disrupted traffic on a road leading to Yerevan’s Zvartnots International Airport, located just 12km from the center of the city. 
Consequently, some passengers had to go the rest of the way on foot in order to catch their flights, according to Sputnik news agency.
Railway services have also been disrupted all across the country amid the demonstrations, a spokesman for South Caucasus Railways confirmed to Interfax. 
Some other highways, including the one connecting th…

ایران فرمان قتل : دستور استفاده از سلاح گرم در برخورد با معترضان

سندی که در تصویر میبینید دستور فرمانده نیروی سرکوبگر انتظامی تهران به همه یگانهای مستقر در این شهر است.
بر اساس این دستور کار ، مزدوران حکومت فاسد نظام جمهوری اسلامی اجازه یافته اند که درصورت بروز هرگونه جنبش اعتراضی از سوی مردم علیه رژیم ، از سلاح گرم استفاده کنند.
این دستور یک فرمان قتل است.
نیروی سرکوبگر انتظامی که به ظاهر و تعریف شناخته شده پلیس در سراسر جهان ، میبایست حافظ جان شهروندان باشد ، با آزاد گذاشتن دست مزدوران چکمه پوش خود انها را مجاز به قتل ایرانیان معترض به فسادهای موجود درلایه های حکومت میکنند و این پیام مهم را در خود دارد که اگر در اعتراض به  فساد و شکنجه و کشتار به خیابانها بریزید شما را خواهیم کشت.
چرا که به گفته خمینی دجال، حفظ نظام از اوجب واجبات است.
حکومت فاسدی که انقدر وقیح هست که میلیاردها دلار از خزانه ملی و سرمایه مردمی را صرف سرکوب مردم خود و کشورهای منطقه میکند باید سرنگون کرد.
اکنون چهل سال است که کشور ما به اشغال این ملایان جنایکتارخونخوار و اسلام تحمیلی در آمده است .
هنوز باورش برای برخی سخت است که درک کنند کشور ما به معنای واقعی کلمه از سوی بنیادگرایان الله…