Skip to comments.Humans 'left Africa much earlier'
Posted on 01/27/2011 4:03:33 PM PST by decimon
Modern humans may have emerged from Africa up to 50,000 years earlier than previously thought, a study suggests.
Researchers have uncovered stone tools in the Arabian peninsula that they say were made by modern humans about 125,000 years ago.
The tools were unearthed at the site of Jebel Faya in the United Arab Emirates, a team reports in the journal Science.
The results are controversial: genetic data strongly points to an exodus from Africa 60,000-70,000 years ago.
Simon Armitage, from Royal Holloway, University of London, Hans-Peter Uerpmann, from the University of Tuebingen, Germany, and colleagues, uncovered 125,000-year-old stone tools at Jebel Faya which resemble those found in East Africa at roughly the same time period.
The authors of the study say the people who made the tools were newcomers in the area with origins on the other side of the Red Sea.
The researchers were able to date the tools using a light-based technique, which tells scientists when the stone artefacts were buried.
(Excerpt) Read more at bbc.co.uk ...
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Why are the races so distinct from each other? Genetically they are not, we are a very homologous species as far as DNA similarity goes, but there are obvious differences that are mostly “skin deep” as it were.
Why do you think a black person in Africa who goes half naked every day is more susceptible to sunburn than an Irish red head who freckles and burns in 15 minutes? Someone told you that once and you accept it without any more evidence, despite any and all other evidence?
There is such a thing as genetic variation, and there is a lot more of it in Africa than elsewhere. Why would you suppose they would all be the same any more than that your average Norwegian and your average Italian would be same in amount of melanin content in the skin?
So what mechanism do YOU propose is responsible for population differences?
Is not black a race? Is not white a race? Is not mongoloid a race? What does the term 'race' mean to you?
These quite husky chaps appeared to suffer no vitamin deficiencies!
Do you have an explanation for how?
Are you at all interested in finding one, or knowing one?
Or are you like 0bama in that it is “above your pay grade”?
There's some evidence in the Venona Files that Oppenheimer colluded with Claus Fuchs to give the Soviets the US's atomic secrets.
So far, I’ve only been able to get back to Adam and Eve. Any suggestions?
So, let's say there's one race ~ the San People ~ all that does is cut us off from the differences in the other 13 main haplogroups, plus the various subgroups in the Northern hemisphere.
Interesting that ONE offshoot of the San ~ the folks who moved out of Africa some 75,000 years ago, constitutes about 85% of modern humans!
Does that mean that Africa is not good for us? Or does that say something about us?
Africa is actually a not very good place for humans, and hasn’t been. That is where most human pathogens are found. That is where malaria is such a fact of life that sickle cell anemia is also a fact of life.
Nice that you can get back, but how do you go forward?
How did humans develop our obvious differences between populations?
What was the mechanism?
Ok, well if you look at your chart going backwards you’ll see the distinct differences. Is a Norwegian in the negroid group? Is an Australian Aboriginal in the Mongolian group?
We are Neanderthals:
Recently, a new human species has been discovered in Siberia (see below) and the DNA from these new humans are found only in the DNA of modern Melanesians.
I asked if you considered the subject “above your pay grade” as 0bama famously copped out.
You were copping out, not being 0bama.
If I asked someone “You ‘pay for that microphone’ like Reagan?” I wouldn't be comparing them to Reagan, but using a famous example of the phrase.
Apparently such an answer is “above your pay grade”.
Nice cop out.
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