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Question on skin color of Amerindians

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  • thetick
    replied
    Originally posted by 1798 View Post
    It could mean that the ancestors of the African people were light skinned and that is important.
    Yea they might be aliens also.

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  • 1798
    replied
    Originally posted by thetick View Post
    Yes it does. Science has proven that common traits among ethnic groups occurred over long periods of time, not a sudden change.



    It's just basic science. UV light stimulates melanocyte activity. Melanin is produced by melanocytes at the lower layer of the epidermis. Darker pigmentation is caused by more melanin. The reason is the above with the combined effect of with the lighter density of cells in one's palms and soles.
    It could mean that the ancestors of the African people were light skinned and that is important.

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  • thetick
    replied
    Originally posted by 1798 View Post
    So it takes 1000s of years for skin to change colour.
    Yes it does. Science has proven that common traits among ethnic groups occurred over long periods of time, not a sudden change.

    Originally posted by 1798 View Post
    Why do people with dark skin have light skin on the palms of their hands and the soles of their feet? That must be a link to their ancient ancestry.
    It's just basic science. UV light stimulates melanocyte activity. Melanin is produced by melanocytes at the lower layer of the epidermis. Darker pigmentation is caused by more melanin. The reason is the above with the combined effect of with the lighter density of cells in one's palms and soles.
    Last edited by thetick; 9 May 2015, 04:28 PM.

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  • AFH
    replied
    Originally posted by thetick View Post
    Not sure what you mean by scientific evidence , but American Indians near the equator may have NOT lived in that region long enough for their pigmentation to change.
    Any mutations specific to pigmentation in American Indians?

    From observation those living near the equator on the American continent don't appear to be darker skinned.

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  • T E Peterman
    replied
    The ancestors of Native Americans lived for thousands of years in Beringia & before that, eastern Siberia. They would have shared in arctic adaptations.

    It could also be that, since moving southward, the populations haven't incurred any mutations that would bring back dark pigmentation.

    Timothy Peterman

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  • 1798
    replied
    Originally posted by thetick View Post
    Not sure what you mean by scientific evidence , but American Indians near the equator may have NOT lived in that region long enough for their pigmentation to change.
    So it takes 1000s of years for skin to change colour.

    Why do people with dark skin have light skin on the palms of their hands and the soles of their feet? That must be a link to their ancient ancestry.

    Leave a comment:


  • thetick
    replied
    Not sure what you mean by scientific evidence , but American Indians near the equator may have NOT lived in that region long enough for their pigmentation to change.

    Leave a comment:


  • AFH
    started a topic Question on skin color of Amerindians

    Question on skin color of Amerindians

    Does anyone have any scientific data on why Amerindians living along the equator are significantly lighter skinned than other aboriginal global populations living near the equator?
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