What Does the Scientific Evidence Say About Population Bottlenecks?

There were attempts in nineteenth century to explain the different races of humanity by proposing that the wives of noah's sons were of different races. This is a really good argument for inter racial marriage, if you think about it. However, after all the genetic testing that's been done in recent years with the mapping of the human genome, this simply isn't what the evidence points to. Huma s have a surprising lack of genetic diversity. And there is evidence that we've been through population bottle necks, but never just eight people. If there was a global flood that wiped out everything but two of every land species, we should see a population bottle neck happening four to five thousand years ago. All