changes like that don't happen in a couple of years or even a whole lifetime. for example if a white man and white woman went to live in subsaharan Africa and their kids only had children with other white people, it would take maybe 4 or 5 generations, perhaps longer, to develop darker skin pigmentation and generally more "African" features such as flatter nose, curly hair, and thicker lips. remember that what we look like is an adaptation to our environment, and isn't only limited to skin color. so thousands of years ago when Africans went into Europe to settle down, their facial features and skin color changed to better suit the climate (less intense sun, colder weather, etc.) but it takes a lot of time for these changes to take place.
A lot more than that, since evolutionary changes come about due to random variations that happen to make an individual more successful than others at passing on their genes. In other words, you need time for variations to occur, and time for the less successful variants to produce fewer offspring or die before reproducing, while the more successful breed like bunnies and live long, healthy lives.
Some people question whether modern medicine and modern society have effectively stopped human evolution.
will a white person turn black if they lived a lifetime in mid africa ?
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changes like that don't happen in a couple of years or even a whole lifetime. for example if a white man and white woman went to live in subsaharan Africa and their kids only had children with other white people, it would take maybe 4 or 5 generations, perhaps longer, to develop darker skin pigmentation and generally more "African" features such as flatter nose, curly hair, and thicker lips. remember that what we look like is an adaptation to our environment, and isn't only limited to skin color. so thousands of years ago when Africans went into Europe to settle down, their facial features and skin color changed to better suit the climate (less intense sun, colder weather, etc.) but it takes a lot of time for these changes to take place.
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Boojum
6 years ago
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Whut? "maybe 4 or 5 generations"?
A lot more than that, since evolutionary changes come about due to random variations that happen to make an individual more successful than others at passing on their genes. In other words, you need time for variations to occur, and time for the less successful variants to produce fewer offspring or die before reproducing, while the more successful breed like bunnies and live long, healthy lives.
Some people question whether modern medicine and modern society have effectively stopped human evolution.
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Anonymous Post Author
6 years ago
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Why hasnt black people turned white yet and they have been in america for hundreds of years
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Boojum
5 years ago
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You really are quite astonishing.
By your "logic" everyone on the American continents should now have bronze skin, black hair and brown eyes, regardless of their ancestry.
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Anonymous Post Author
5 years ago
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You said more than 4 5 generations so ...