Again with confusions Diop did not do DNA tests on mummies He attempted to extract melanin from skin to prove they were black I don t know what this mysterious DNA testing is that silence speaks volumes as to why it hasn t been done Do you mean extracting DNA from ancient bones It s not easy to do that DNA degrades over time Do you mean testing modern populations to model ancestry That is being done but actually there is often resistence from indigenous peoples who suspect some sort of experimentation is being performed on them See this response to the Human Genome Diversity Project an attempt to create a genetic map of all human populations Your comments about visible features just indicate how enthralled you are by an archaic model of race a model which actually justifies racial hierarchies Only by taking the view that modern Africans Aboriginal Australians etc are somehow stuck in a racial identity formed 50 000 70 000 years ago that has never changed can you really argue for commonality between these peoples even then you are saying nothing about direct contacts between Africa and Mesoamerica Such a view simply reinforces the old idea that black skinned people are less evolved than other people since unlike others apparaently they all remain the same race over tens of thousands of years This view btw is not supported by genetics