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White Europeans speak about black Europeans
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[QUOTE]Originally posted by the lioness,: [QB] [QUOTE]Originally posted by xyyman: Does the environment change the genes or the genes adapt to the environment? [/QUOTE]neither. At every movement humans are randomly mutating on a tiny scale. The process starts in random variation. These are normal mutations, such small differences you would nto notice it for generations. The offspring of a given set of parents to not all look exactly the same even if of the same gender. So in a thick rainforest people who mutated a tiny bit taller, on average might be at a disadvantage over shorter people. So if the shorter people can move through that forest more easily more of them might survive Over thousands of years certain traits start to accumulate as per having a slightly better survival advantage. Other traits which were an advantage in on environment may start to diminish if they are not an advantage. So the result of this selection process is a combination of advantage traits and a drop off of old traits which are no longer an advantage. So some of the change is an advantage or a trait that diminishes but is not necessarily a disadvantage just not needed in a new environment [/QB][/QUOTE]
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