2009-12-11 10:19:22 UTC
I could have worded this question better, but I don't want to offend anyone. If you get offended easilly by this topic, please stop reading now. You have been warned. I already posted the question I'm about to ask you, and it got deleted. I'm not sure why it was delete, but I think it's a valid question. I'm sorry that it might seem politically incorrect. I'll agree that it could stir up emotions, so I'd like to say that this question is not intened to offend anyone. Last time I posted this, all I got were a bunch of 1 line "Your a racist" or "we're all human" or "no, they aren't" responses. Please read the whole question and only give well reasoned out answers. Thanks for your understanding and maturity.
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So the real question is "Are black Sub-Saharan Africans more closely related to great apes than other humans" Note that I'm not asking of black people ARE apes. I'm only asking if there is evidence that they are slightly (by a few base pairs or so) closer. Scientifically, this seems likely to be the case. Here is why:
Humans split of from the line that lead to chimpanzees 5-7 million years ago. Chimpanzees and humans are very closely related (95% of their DNA sequence, and 99% of coding DNA sequences are in common. Changes in environmental conditions are what lead to changes in evolution. About 100,000 homo sapiens left the continent of Africa.
- 100,000 is one 50th of 5,000,000.
- .2% / 100,000 years = 0.000002 % change in DNA per year since humans left Africa
- 5,000,000 * 0.000002 % change in DNA per year = 10%
Now chimpanzees are not the same as the anscestors of humans and modern chimpanzees, but It appears that evolution speed up when people left Africa. Is it not safe to say that Africans are slightly closer to the great apes then other humans? Why would africans have adapted a lot if they remained in their same environment. Why should I not assume that the anscestors of Asians and Europeans were at one point living in Africa, and that these Africans were, well, Africans.
There have probably been about the been the same number of generations in Africa as elsewhere, but the number of generations is not what causes evolutionary changes. Horseshoe crabs, for example, have changed very little over the past 445 million years. Changes in environment or the ecosystem are what lead to changes in Evolution.