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Thread: Mankind's Close Call With Extinction

  1. -1
    BAMAPHIN 22's Avatar
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    Mankind's Close Call With Extinction

    Human beings may have had a brush with extinction 70,000 years ago, an extensive new genetic study suggests.

    The number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age, according to an analysis released Thursday.

    "This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species' history. Tiny bands of early humans, forced apart by harsh environmental conditions, coming back from the brink to reunite and populate the world. Truly an epic drama, written in our DNA," Spencer Wells, National Geographic Society explorer in residence, said in a statement.
    http://www.cbsnews.com/stories/2008/...n4040604.shtml
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    Tetragrammaton's Avatar
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    Wow. It really puts our species in perspective.
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    Eshlemon's Avatar
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    This type of event is why Sagan wants us to get of this rock and spread out asap. One theory on the extinction even:

    http://en.wikipedia.org/wiki/Toba_catastrophe_theory
    Toba catastrophe theory

    According to the Toba catastrophe theory, 70,000 to 75,000 years ago a supervolcanic event at Lake Toba, on Sumatra, reduced the world's human population to 10,000 or even a mere 1,000 breeding pairs, creating a bottleneck in human evolution. The theory was proposed in 1998 by Stanley H. Ambrose of the University of Illinois at Urbana-Champaign.[1][2]
    On a doom and gloom note, Yellowstone Super is estimated to be many times worse than Sumatra. And occur every 600-800 thousand years...the last one 640,000 years ago.

    http://www.extremescience.com/calderas.htm
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    Dolphan7's Avatar
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    Hmmmm.....so science has found that the population of humans was effected by some sort of event and that reduced the total population to 2000 or so? Maybe even less?

    Interesting!!!!
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    =FinTunaWorld='s Avatar
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    What is science becoming this days, it's all just theories,specualtions and hypothesis and wishful thinking, I though Science was facts not unsolved theories without a definitely clear cut fact to support whatever matter is being talked about.Earth was created by gasses LOL! Hilarious.
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    spydertl79's Avatar
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    Quote Originally Posted by Dolphan7 View Post
    Hmmmm.....so science has found that the population of humans was effected by some sort of event and that reduced the total population to 2000 or so? Maybe even less?

    Interesting!!!!
    64,000 years before the earth existed though...
    "As scarce as truth is, the supply has always been in excess of the demand."
    Henry Wheeler Shaw
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    Dolphan7's Avatar
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    Quote Originally Posted by spydertl79 View Post
    64,000 years before the earth existed though...
    Really? And when did earth "Exist"?

    Remember that no dating method is valid beyond 5000 years or so. Anything beyond that time is "highly" questionable and unreliable. We just don't know.

    The point though, forgetting about the date issue, is that some event caused mankind to nearly die out. An interesting scientific parralel to the Noaitian Flood.
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    Quote Originally Posted by Dolphan7 View Post
    Really? And when did earth "Exist"?

    Remember that no dating method is valid beyond 5000 years or so. Anything beyond that time is "highly" questionable and unreliable. We just don't know.

    The point though, forgetting about the date issue, is that some event caused mankind to nearly die out. An interesting scientific parralel to the Noaitian Flood.
    You forgot a "0," radiocarbon dating is accurate to 50,000 years, after that it loses some of its accuracy but still provides usable data.
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    Tetragrammaton's Avatar
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    Quote Originally Posted by Dolphan7 View Post
    Remember that no dating method is valid beyond 5000 years or so.
    Quote Originally Posted by Wikipedia
    Radiocarbon dating is a radiometric dating method that uses (14C) to determine the age of carbonaceous materials up to about 60,000 years old

    There is that.
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    emeraldfin's Avatar
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    Wow lets add this to the rest of the events/processess that will eventually wipe us all out.
    At the moment I have......
    Global cooling, global dimming, global warming, super massive volcanoes, asteroids, a global epidemic, the North Atlantic Drift stopping and Im sure there are a couple more you could add to that list.
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