Posted on 05/09/2009 4:28:16 PM PDT by decimon
Research by geneticists and archaeologists has allowed them to trace the origins of modern homo sapiens back to a single group of people who managed to cross from the Horn of Africa and into Arabia. From there they went on to colonise the rest of the world.
Genetic analysis of modern day human populations in Europe, Asia, Australia, North America and South America have revealed that they are all descended from these common ancestors.
(Excerpt) Read more at telegraph.co.uk ...
Recapitulation ping.
I don’t believe crap about this.
I wonder how many pints it took to dream this one up.
This is like one of those “Where are they today” segments on pop stars, no?
And here I thought that it was diversity that gives us strength.
What crap do you believe?
So how come Africans are shall we say so unsophisticated in Africa? Always killing each other?
No, try Mesopotamia. That is the cradle of civilization; not Africa.
OK, we’re all African-Americans ... no more racism.
“’Cause you, you’re part eggplant....”
Well, that would give, shall we say, sophisticated Europeans some 60 years of not always killing each other.
It is thought that changes in the climate between 90,000 and 70,000 years ago caused sea levels to drop dramatically and allowed the crossing of the Red Sea to take place.
Dr Peter Forster, a senior lecturer in archaeogenetics at Anglia Ruskin University in Cambridge who carried out some of the genetic work, said: "The founder populations cannot have been very big. We are talking about just a few hundred individuals."
The earliest homo sapien remains found outside of Africa were discovered in Israel and are thought to be around 100,000 years old. They are remains of a group that left Africa through what is now the Sahara desert during a brief period when the climate grew wetter, turning the desert green with vegetation. This excursion, however, failed and the population died out when the climate started to dry out again.
Around 50,000 years ago they also began spreading into Europe via the Bosporus at the Istanbul Strait. Again low sea levels allowed them to almost walk into Europe.
Once there they will have encountered Neanderthals, who, with bigger bodies were more adapted to the cold weather at the time, had been living in Europe for nearly a quarter of a million years but are thought to have died out due to changes in the climate.
That is a lot of climate change prior to the industrial revolution.
Also, a very small starter population.
Yup. The thing about climate change is that climate changes.
Also, a very small starter population.
Indeed. But DNA analysis proceeds so this will likely not be the last word.
Years ago all the type “O” blood was traced to African roots. “O”ldest type, if I remember right.
Check out the book, Eat Right 4 Your Type, by Dr. Peter J. D’Adamo. Amazingly true to my blood type and foods that agree with my system are “spot on”.
Wish I could have convinced my parents how awful milk felt in my stomach. 70 years and my strongest childhood memory is sleeping with my head on the table since I could not leave until I finished that glass of milk. Woke up on the floor and got ready for school, no breakfast, who won?
Mutations over time were used to do a backward in time analysis.
this was reported in Scientific American in the late 90s and the author of the article said that we call had a common Grandmother, he named Eve, who lived in the horn of Africa.
When I received the 2000 census long form one of the questions was what race are you? The answers included Caucsian, Black, Yellow, Hispanic, and Other. I checked other and filled in the blank....HUMAN.
RACE might be appropriate when discussing NASCAR but it is meaningless when trying to define people!
And the members of the OJ jury did not believe all that DNA crap.
Read the headlines on Africa. There are many reasons why it earned the nickname of the “dark continent”.
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