Evolution of skin color

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    • #9108
      Siemowit
      Participant

      I would like to ask you a question about the evolution of skin color.

      My friend claimed that black people would become white after 10 generations if they lived in Europe (without racial mixing). Is it true ?

      I thought that evolution works slower. How long would it take them to evolve from black skin to white skin ?

    • #81848
      mith
      Participant

      You should ask more about selection.

    • #81880
      Siemowit
      Participant

      It seems that nobody knows the answer to my question. I have asked many people on internet (also scientists) and the only answer was when skin color probably evolved.

      I would like to know how long would take that evolution. 1000 of years or rather tens thousands of years ?

    • #81881
      Siemowit
      Participant

      Or maybe 10 generations ? 😉

    • #81893
      Darby
      Participant

      As mentioned above, the change rate is dependent on the power of the selection. With Vitamin D supplements available, there may be no real selection (although there are other factors at work).

    • #81899
      mith
      Participant

      I mean it makes no sense to refer to number of generations…for instance if you had bacteria, one generation is like 20billion individuals–hey can have a lot more variations than say 1000 humans. Secondly, if you had no selection factor, why would you adapt in a particular direction? Let’s say that being whiter wasn’t harmful but not beneficial, eventually you’d be less tan…but compare that to if being white was the difference between life and death. (for the sake of this argument we assume that skin color is being carried on a couple of melanin genes).

    • #81920
      alextemplet
      Participant

      How much of skin color is genetic? Could it also have to do with diet?

    • #82149
      mcar
      Participant

      In Darwin’s Origin of Species, there’s a part there that even food preferences could possibly be a factor to cause variation in the skin color of an animal.

    • #82360
      alextemplet
      Participant

      Exactly; that’s why flamingos are pink.

    • #83074
      pankaaj
      Participant

      i guess, We dont know what really affects skin colour in humans.So selection on what basis?
      And why?
      In human community, many factors are involved in selection like intellectual powers, way of thinking, social and economical status etc.
      Skin colour is negligible, a character in selection!

      quote Siemowit:

      I would like to ask you a question about the evolution of skin color.

      My friend claimed that black people would become white after 10 generations if they lived in Europe (without racial mixing). Is it true ?

      I thought that evolution works slower. How long would it take them to evolve from black skin to white skin ?

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