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Viruses May be the Precursors of All Life

steveha writes "The cover story for this month's Discover magazine tells of a recently discovered gigantic virus, Mimivirus, that has blurred the lines between viruses and bacteria, and spurred speculation that viruses could be the reason life evolved past single-celled organisms." From the article: "This is striking news, especially at a moment when the basic facts of origins and evolution seem to have fallen under a shroud. In the discussions of intelligent design, one hears a yearning for an old-fashioned creation story, in which some singular, inchoate entity stepped in to give rise to complex life-forms--humans in particular. "

8 of 488 comments (clear)

  1. I see... by UberMench · · Score: 3, Funny

    So, Agent Smith was right, humans ARE a virus. Replicating and spreading, consuming everything in our path. Who says movies aren't educational?

    --
    If video games are created by teams of designers and artists, how are they not art??? www.skylarscaling.com
    1. Re:I see... by ultranova · · Score: 3, Interesting

      So, Agent Smith was right, humans ARE a virus. Replicating and spreading, consuming everything in our path. Who says movies aren't educational?

      Um, no. Viruses don't consume anything, since they don't have a metabolism. Agent Smith (and all the other agents too), on the other hand, uses human hosts to replicate, and is therefore a virus himself.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

  2. Uh by hexghost · · Score: 3, Interesting

    "In the discussions of intelligent design, one hears a yearning for an old-fashioned creation story, in which some singular, inchoate entity stepped in to give rise to complex life-forms--humans in particular."
    Actually, I just hear a bunch of idiots trying to take a fable from 2 thousand years ago and use it to explain things in place of modern science.

    1. Re:Uh by bani · · Score: 3, Insightful

      problems.

      1) we know life to be several billion years old, a few hundred million is a mere fraction of that.
      2) a plausible explanation: the complex was merely a laboratory for extraterrestrial scientists who were visiting earth, studying the genomes of life on various planets in the universe.

      do i get a cookie?

  3. Discussion? by msbsod · · Score: 4, Interesting

    What discussion? The whole topic of creationism/intelligent design is only being discussed in the US. The problem is that we have too many unteachable people in the US who take every nonsense for granted as soon as it gets the religious smoke screen. And the media in the US love this topic because it allows them to spread their pitiful program 24*7. Not only scientists, but also almost the entire world have put this "discussion" to rest. If you find it mentioned in European media, then only with reference to the difficulties in the US. This is not a discussion. It is comedy.

  4. similar to eukaryotic versus prokaryotic by circletimessquare · · Score: 3, Interesting

    viruses certainly play a roll in evolution: they are mercenary gene transfer mechanisms, even across species

    as to the roll they played in the very beginning, it's my personal belief they were there from the start, swapping dna between proto-bacteria. i think self-replicating dna came first, then one day a miraculous/ fortuitous event happened: one of the self-replicating dna got swallowed by a little oil droplet, a bag, a micelle, and in this contained environment, was allowed to direct it's self-replication in a more controlled manner. this protobacteria's dna most definitely still had a life outside the oil droplets where it could still self-replicate. so therefore the first "virus" was still self-supporting. but then, parasitically, it devolved and co-evolved with the proto-bacteria to get a free ride: get its energy source for its replication from its new more stable proto-bacteria

    this oil micelle adapation was only one miraculous/ fortuitous moment. the prokaryotes, bacteria, are very simple: loose dna floating around inside a capsule. the eukaryotes are highly regimented: they have organelles throughout the cell, one of which, the mitochondria, has its own genome

    how did that happen?

    it can only mean, one fortuitous day, billions of years ago, one cell swallowed another and instead of being digested, the swallowed cell made "food" (atp, other energetic molecules) for the master cell

    and the rest is history. our genetic history. without that one fortuitous moment, whenever and wherever it happened so long ago, life as we know it would not be the same in the most radical of ways. perhaps the earth would still be just bacterial and algal mats. perhaps life would still evolve more complex, but in ways utterly alien to how they are now

    so there is, in a way, many such "miraculous", if you believe in intelligent design, or "fortuitous", if you believe in undirected evolution, throughout our history as life

    and in the end, it doesn't matter which way you view it: god-directed or random, as long as you agree it HAPPENED

    the real problem with the intelligent design crowd is when they deny basic facts

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  5. Re:Well by steveha · · Score: 3, Informative
    Nice of the poster to inject a controvertial personal view in the end of his submission for all of us to flame about.

    Hi, I'm steveha. The poster.

    For the record, here is the story submission exactly as I submitted it:

    The cover story for this month's Discover magazine tells of a recently discovered gigantic virus, Mimivirus, that has blurred the lines between viruses and bacteria, and spurred speculation that viruses could be the reason life evolved past single-celled organisms.


    Please note that I didn't put any personal views there.

    Please also note that Zonk did not put words in my mouth. He put my summary in double-quotes, and then after the double-quotes he put some additional stuff from the article. He edited my link references but did not edit my words at all.

    steveha
    --
    lf(1): it's like ls(1) but sorts filenames by extension, tersely
  6. Welcome, Mr. Anderson by roman_mir · · Score: 3, Interesting

    The Matrix is definitely one of the most profound movies of all time. The dialog by Agent Smith has these words:

    I'd like to share a revelation that I've had during my time here. It came to me when I tried to classify your species. I realized that you're not actually mammals. Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment, but you humans do not. You move to an area, and you multiply, and multiply, until every natural resource is consumed. The only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. A virus. Human beings are a disease, a cancer of this planet, you are a plague, and we are the cure.

    This may as well just be it - the actual truth.

    The discovery of Mimivirus lends weight to one of the more compelling theories discussed at Les Treilles. Back when the three domains of life were emerging, a large DNA virus very much like Mimi may have made its way inside a bacterium or an archaean and, rather than killing it, harmlessly persisted there. The eukaryotic cell nucleus and large, complex DNA viruses like Mimi share a compelling number of biological traits. They both replicate in the cell cytoplasm, and on doing so, each uses the same machinery within the cytoplasm to form a new membrane around itself. They both have certain enzymes for capping messenger RNA, and they both have linear chromosomes rather than the circular ones typically found in a bacterium.

    "If this is true," Forterre has said of the viral-nucleus hypothesis, "then we are all basically descended from viruses."


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