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Jan 26th 2011 2:12AM No, it is true that it would take much longer than a few generations for something like that to happen. A trait must exist within a population to be passed on to progeny. Such traits could appear through mutations, but this would be on a random basis. Bad traits such as decreased lung capacity (like genetic diseases) would be less likely to be passed on due to the possibility of leading to death before reproduction. Good traits like webbed feet could develop, and would probably be passed down and allowed to remain in the gene pool. Unfortunately it says that the population of these people is decreasing, so this will probably not happen noticeably.