Racial Inbreeding

Discussion in 'Biology & Genetics' started by Willy, Aug 29, 2007.

  1. Willy Banned

    Messages:
    587
    Scholars believe the color differences in human skins can be traced to climatic adaptation. They argue that the high levels of melanin in dark skin originally protected people living outside in hot, sunny climates, notably in Africa and South Asia, from skin cancer. Conversely, in cold climates, the low amount of melanin in light skins enabled the early humans to soak up vitamin D from a sun often hidden behind clouds.

    These color differences were reinforced by millennia of inbreeding when humans lived in small groups that were geographically and socially isolated.

    This inbreeding also produced variations in head and nose shapes and other facial features so that Northern Europeans look different from people from the Mediterranean area, such as Italians and, long ago, Jews. Likewise, East African faces differ from West African ones, and Chinese faces from Japanese ones. (Presumably the inbreeding and isolation also produced the DNA patterns that geneticists refer to in the latest scientific revival and redefinition of race.)


    http://www.contextsmagazine.org/content_sample_v4-4.php
     
  2. spidergoat alien lie form Valued Senior Member

    Messages:
    46,881
    I would call it sexual selection, not inbreeding.
     
  3. DwayneD.L.Rabon Registered Senior Member

    Messages:
    999
    Well a Polar Bears skin is black, what does that tell you.


    DwayneD.L.Rabon
     
  4. S.A.M. uniquely dreadful Valued Senior Member

    Messages:
    72,822
    FYI:

    http://en.wikipedia.org/wiki/Inbreeding
     
    Last edited: Aug 29, 2007
  5. spidergoat alien lie form Valued Senior Member

    Messages:
    46,881
    I don't doubt that the environment had a part in creating these differences initially, but peoples at the same latitude also look different.
     
  6. Enmos Moderator

    Messages:
    42,949
    Are you deliberately being stupid ? :bugeye:
     
    Last edited: Aug 30, 2007
  7. spidergoat alien lie form Valued Senior Member

    Messages:
    46,881
    The problem is there wasn't really much geographical isolation, unless you consider islands. That's why I think the superficial differences between the "races" are a result largely of sexual selection. It comes about as a result of culture. Cultures tend to breed within themselves.
     
  8. Orleander OH JOY!!!! Valued Senior Member

    Messages:
    25,822
    I don't understand what this thread it trying to get at. ???
    Wouldn't moving across the planet and having children with other cultures/races be a part of evolution?
     
  9. Willy Banned

    Messages:
    587
    I posted this thread because I got a infraction for saying:

    "The more a group of being's inbreed the more they will look alike.

    The less a group of being's inbreed the less they will look alike."
     
  10. cosmictraveler Be kind to yourself always. Valued Senior Member

    Messages:
    30,940
    We are all from the same woman that gave birth to the first human. That means we are all inbreeding for we are all brothers and sisters.
     
  11. Willy Banned

    Messages:
    587
    Then who gave birth to that "same woman that gave birth to the first human"?
     
  12. cosmictraveler Be kind to yourself always. Valued Senior Member

    Messages:
    30,940
    A hominoid creature which because of a genetic mutation created the first human.
     
  13. Willy Banned

    Messages:
    587
    Was that human a black African?
     
  14. cosmictraveler Be kind to yourself always. Valued Senior Member

    Messages:
    30,940
    More than likely from the findings of Dr. Leaky and his crew. That doesn't mean that it is the exact place, its only the place that has been located so far with bones that date back nearly 3 million years linking humans to that which evolved there.
     
  15. Fraggle Rocker Moderator

    Messages:
    22,692
    Yes he is, and I'd say he's about three days away from being permanently banned from SciForums. This is the second time he's posted something from a racist website, which is an egregious violation of our rules.
     
  16. leopold i miss my coco. Valued Senior Member

    Messages:
    17,014
    willy,
    interesting subjct.
    so, you propose that inbreeding helped to shape a cultures traits right?
    you do realize that this applies to your culture as well do you not?
    also, the fact that even albinos have melenin in their skin says that ALL of us are descendants of africans. in essence willy you have black blood.
    why does it suddenly smell like J.B. in here?
     
  17. Willy Banned

    Messages:
    587
    Racist website?

    It is from the University of California.
     
  18. Exhumed Self ******. Registered Senior Member

    Messages:
    2,373
    :scratchin:

    I think you meant to say this:

    Biology & Genetics is one of this website's scientific subforums. Please comport yourself like a scientist in these halls. You have not participated in this discussion so you can't fall back on the excuse that you've been trying to explain this to us knuckleheads and you just can't get through so you're expressing your frustration.

    You don't jump into our discussions and just start insulting people without making a single substantive statement. That is not science, that is trolling and it is a violation of the rules. If you have something to offer, do so.
     
  19. spuriousmonkey Banned

    Messages:
    24,071
    It published by the University of California Press. That is not the same as being from the University of California.

    ASA, the american sociological association is behind it. An organization that promotes the field of sociology.

    What you have quoted though is an editorial. And if you read the entire thing, well, in fact you can read the summary at the very beginning, you find out that it is not a racist piece at all:

    merely it describes by racism is a popular theme in the US and why it is apparently seen as an important issue.

    Of course selective quoting can turn any piece into a stinking sack of puss.

    But the link is definitely not to a racist website.
     
  20. Enmos Moderator

    Messages:
    42,949
    Hey its an honest question, i cant believe anyone in their right mind would belief anything that stupid. So it has to be deliberate on his part. :shrug:
     

Share This Page