Posted on 02/28/2011 12:05:32 PM PST by SeekAndFind
More to it than just that. Blacks in northern climates who supplement their diet with vitamin D are under no selective constraints to have lighter skin. Similarly, whites in equatorial climates who wear covering and sun screen are also under no selective pressure to have darker skin.
But if there is another mechanism, other than evolution through natural selection of genetic variation, that explains why different human populations look differently and are locally adapted to environmental conditions - I would certainly like to hear it.
So, if my family had moved to florida at one point, I or some of my heirs might be black??
Each of Noah’s son’s looked differently. light, dark, yellow. They went off to different parts of the world after the flood.
It is more evolutionary tripe. Why are the Eskimos not white? Why are the Mongols not white? Why are the Aztecs decedents not black?
Intersting. I would have guessed that in the tropics natural selection would have FAVORED darkly pigmented individuals. I had NO idea that a theory could be imbued with the power of creation.
One of the worst sunburns I've ever gotten on my face occurred in the dead of winter, on a ski slope. This is not uncommon. "Tanning" also occurs due to wind and cold.
Either someone is not very good at explaining themselves, or the theory needs work.
Apparently it’s the new religion.
How did Noah end up with three sons that looked so different? What was the mechanism? Dark skin was the curse set upon Ham
Why did these differences accumulate instead of abrogate?
How could you get these three distinct genetic types all from one set of parent?
And how did these differences accumulate such that three who were brothers gave rise to populations that looks so distinct?
They's some of them there creationists and don't know no better.
14,000 or so years (approximately 700 generations) might not be enough time.
No........but if they moved there about 11,500 years ago, nobody would mistake you for an Irishman.
Wind and cold?
LOL!
Try “the reflection of the sun off the snow” and you will be closing in on the truth.
I take it you’ve never experienced windburn. It’s distinct from sunburn.
I believe we once had a more diverse gene pool and we would have children that often didn’t look like us. Similar to cat or puppy litters. In time, those who looked similar were more familiar or attracted to each other and those traits became dominate and repeated, distinctive groups formed.
There is some circumstantial evidence in the Bible where parents would have several children and one would be in the same image.
Eskimos are not white because their diet historically has been rich in organ meats as they used to live an almost totally carnivorous lifestyle. Organ meats and fish are very high invitamin D so there was no selective pressure to develop a light skin color.
Windburn is from chafing.
Sunburn is from sun.
Tanning is caused by exposure to sunlight - not from exposure to wind or cold.
Sunburn is common among the light skinned in the dead of winter when they ski on a sunny day because they are getting the reflection of the sun off the snow, effectively almost twice the amount they had become used to - and usually all day - and without much protection.
Why are the Eskimos not white?
They get most of their vitamin D from sea food and or they migrated there relatively recently.
This pigment "science" is the same thing.
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