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Lake Vostok Found Teeming With Life

jpyeck writes "Lake Vostok, Antarctica's biggest and deepest subsurface lake, might contain thousands of different kinds of tiny organisms — and perhaps bigger fish as well, researchers report. The lake, buried under more than 2 miles (3.7 kilometers) of Antarctic ice, has been seen as an earthly analog for ice-covered seas on such worlds as Europa and Enceladus. It's thought to have been cut off from the outside world for as long as 15 million years. But the latest results, reported in the open-access journal PLOS ONE, suggest that the lake isn't as sterile or otherworldly as some scientists might have thought. More than 3,500 different DNA sequences were identified in samples extracted from layers of ice that have built up just above the surface of the lake."

14 of 62 comments (clear)

  1. Are any of them potentially dangerous? by Anonymous Coward · · Score: 5, Funny

    They should get one of the clipboard guys to chug a bottle and see if he mutates.

    1. Re:Are any of them potentially dangerous? by TWiTfan · · Score: 5, Funny

      Screw dangerous, I'm wondering how those fish *taste*.

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  2. Don't dig up the spaceship by Anonymous Coward · · Score: 5, Funny

    That ends badly

  3. After all the fuss by Provocateur · · Score: 5, Funny

    ...it turns out to be life as we know it

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  4. If it were my pool... by sycodon · · Score: 2

    ...I'd shock it with a giant does of chlorine.

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  5. Drop a few kilos of explosives down the chute by Adult+film+producer · · Score: 3, Funny

    See if anything floats to the surface? Probably the easiest way to confirm.

  6. It's not contamination by dfm3 · · Score: 5, Informative

    If you read TFA, you'll see that 1) they did sequence DNA, 2) they found many, many species which are not the usual ones associated with contamination due to methodology, and 3) they found organisms that can theoretically survive in the extreme and varied environments believed to be present in the lake (thermophiles near suspected geothermal areas, halophiles in brackish/salty water, etc). As a microbiologist, I find it fascinating that the authors not only provide a list of species, but go so far as to paint a complete picture of how each could possibly exist in a completely functioning ecosystem. For example, they found organisms responsible for carbon and nitrogen fixation, and hypothesize that these same species will also be found throughout the lake water in their various niches.

    1. Re:It's not contamination by radtea · · Score: 3, Insightful

      I've read TFA, and thanks for adding some clarity, but I still have to wonder when they'll sequence the DNA.

      Apparently you neither read the TFA nor the reply to your original false assertion that they didn't sequence the DNA.

      Nor does your claim "if it's just an already known species then it's just contamination" make any sense.

      I was on a remote island recently. I picked up an odd feather on the beach. I brought it back home and used it to identify the bird it came from. It was a known species.

      There is absolutely no basis in that observation to support the claim that my backpack had somehow become contaminated by feathers from that species, and DNA is no different from feathers in this regard, when subject to ordinary standards of careful handling for such samples, which were obviously applied in this case (that is: the people doing the research are not and should not be presumed to be complete idiots.)

      So you're completely wrong about all that, but have a nice day anyway!

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  7. bigger fish by wisnoskij · · Score: 2

    There is probably a civilization of super piranha, that have been surviving by cannibalism for 15 million years, creating a race of super big, super powerful, mean, man eating monsters.

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  8. "More than" by pentadecagon · · Score: 2, Insightful

    Could we please stop saying "more than" in scientific contexts, except when needed? This phrase is intended to denote situations where we just know a lower boundary of the correct value, but in recent time it's being (ab-)used mostly for a dramatic effect. I really wish people would either give precise figures, or when this is not practical, use the words invented to mark numbers as approximations, like "roughly" or "about". Statistically speaking, the difference is that "roughly" implies an effort to find a "simple" number close to the correct expectation value, but "more than" implies we picked just some number that's surely below the confidence interval.

    1. Re:"More than" by Samantha+Wright · · Score: 4, Informative

      The exact number is 3,507. I hope you're now able to sleep well at night.

      ...and if you're curious, that number is actually extremely low by the standards for this type of experiment; they didn't analyse anywhere near enough data. Metagenomics is supposed to take up gigabytes of disk space; the amount of usable data they got was around 37 MB.

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  9. Re:Clean water? by shikaisi · · Score: 2

    So where am I supposed to get clean water for my scotch?

    Mandrake, I suggest you drink only distilled water, or rainwater, and only pure-grain alcohol.

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    No left turn unstoned.
  10. Re:Clean water? by mrchaotica · · Score: 2

    It can be if you mix it with something (such as the aforementioned scotch).

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  11. Contamination is a bitch by Anonymous Coward · · Score: 2, Interesting

    I do metagenomics in a Deep Biosphere project and have to wonder how this article even got published. I mean, 80% contamination rate is just insane. We've been plagued by contamination as well (1-3% that I can tell). Sure, it's easy to filter out e.g. human sequences from the data, but what about the 1,000 or so bacterial species that live on the human skin? They conveniently skip this part in the article..