Welcome to PatsFans.com

Humans almost went extinct 70.000 years ago

Discussion in 'Political Discussion' started by jack, Apr 24, 2008.

  1. jack

    jack Rookie

    Joined:
    Sep 16, 2007
    Messages:
    1,571
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    http://www.cnn.com/2008/TECH/04/24/close.call.ap/index.html
    Human beings may have had a brush with extinction 70,000 years ago, an extensive genetic study suggests.


    A local guide signals to a lost vehicle in the Sahara Desert.

    The human population at that time was reduced to small isolated groups in Africa, apparently because of drought, according to an analysis released Thursday.

    The report notes that a separate study by researchers at Stanford University estimated the number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age.

    "This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species' history," Spencer Wells, National Geographic Society explorer in residence, said in a statement.

    "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."

    Wells is director of the Genographic Project, launched in 2005 to study anthropology using genetics. The report was published in the American Journal of Human Genetics.

    Previous studies using mitochondrial DNA -- which is passed down through mothers -- have traced modern humans to a single "mitochondrial Eve," who lived in Africa about 200,000 years ago.
    Last edited: Apr 24, 2008
  2. otis p. driftwood

    otis p. driftwood Rookie

    Joined:
    Feb 4, 2008
    Messages:
    5,271
    Likes Received:
    4
    Ratings:
    +4 / 0 / -0


    This was posted a week or so ago. There are other experts who don't agree, and the beat goes on.
  3. Real World

    Real World Moderator Staff Member

    Joined:
    Aug 15, 2006
    Messages:
    26,731
    Likes Received:
    125
    Ratings:
    +249 / 3 / -2

    I wonder if the cause was man made.
  4. jack

    jack Rookie

    Joined:
    Sep 16, 2007
    Messages:
    1,571
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    it was designed that way...

    When I read the article I chuckled thinking about harry's horrific facial expressions at the knwoledge of his african roots;)
  5. BelichickFan

    BelichickFan B.O. = Fugazi PatsFans.com Supporter

    Joined:
    Sep 13, 2004
    Messages:
    31,341
    Likes Received:
    121
    Ratings:
    +252 / 8 / -9

    #24 Jersey

    It was the start of MMGW even back then.

    :D
  6. patsfan13

    patsfan13 Hall of Fame Poster PatsFans.com Supporter

    Joined:
    Jan 4, 2005
    Messages:
    24,586
    Likes Received:
    63
    Ratings:
    +114 / 7 / -10

    There was a very good show on thsi on PBS called the Journey of MAn a scientist who was a genetic anthropoligist relayed the scenario in terms of genetic markers to show how people reached various parts of the globe. He gave the date as ~ 50,0000 yrs ago and feels the gene pool could be <200 individuals (Bushmen). IF true we cam REAL close to going out. It also shows the idea of races is obsolete and irrelevant.
  7. wistahpatsfan

    wistahpatsfan Rookie

    Joined:
    Jul 30, 2005
    Messages:
    15,672
    Likes Received:
    11
    Ratings:
    +11 / 0 / -0

    I saw that too.
    I loved the way they were able to trace the movement of people out of Africa, down the coast of India and walking down Malaysia and Indonesia to Australia. They were able to do this by analyzing the DNA of local pockets of indigenious groups. Very cool tool, DNA.
  8. Harry Boy

    Harry Boy Look Up, It's Amazing PatsFans.com Supporter

    Joined:
    Nov 10, 2005
    Messages:
    38,862
    Likes Received:
    119
    Ratings:
    +297 / 1 / -9

    The Bush ancestors did it.
  9. patsfan13

    patsfan13 Hall of Fame Poster PatsFans.com Supporter

    Joined:
    Jan 4, 2005
    Messages:
    24,586
    Likes Received:
    63
    Ratings:
    +114 / 7 / -10


    My kids bought me the DVD for Christmas, a while back. Terrific stuff.
  10. jack

    jack Rookie

    Joined:
    Sep 16, 2007
    Messages:
    1,571
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    Harry before you read this load your shotgun and handgun and leave em easily accessible:eek:
    Human beings may have had a brush with extinction 70,000 years ago, an extensive genetic study suggests.


    Geneticist Spencer Wells, here meeting an African village elder, says the study tells "truly an epic drama."

    The human population at that time was reduced to small isolated groups in Africa, apparently because of drought, according to an analysis released Thursday.

    The report notes that a separate study by researchers at Stanford University estimated the number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age.

    "This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species' history," Spencer Wells, National Geographic Society explorer in residence, said in a statement.

    "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."

    Wells is director of the Genographic Project, launched in 2005 to study anthropology using genetics. The report was published in the American Journal of Human Genetics.

    Previous studies using mitochondrial DNA -- which is passed down through mothers -- have traced modern humans to a single "mitochondrial Eve," who lived in Africa about 200,000 years ago.
    .
  11. IcyPatriot

    IcyPatriot ------------- PatsFans.com Supporter

    Joined:
    Sep 13, 2004
    Messages:
    37,706
    Likes Received:
    258
    Ratings:
    +477 / 2 / -10

    #87 Jersey

    Good find Wes ...

    News is that early man discovered elephant tusk made a great
    aphrodisiac and rock hard boners.

Share This Page

unset ($sidebar_block_show); ?>