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originally posted by: 3daysgone
Why couldn't human beings have evolved in different places at different times? Why do people think that we all come from one man and one woman? That would be one explanation for the major differences in the uniqueness of humans. It would explain the difference in physical characteristics that is obvious between the different cultures.
It's not the common view that there was one man or one woman. It would have been several populations of apelike animals that split at some time around 7mya.
Several more than two that the OP shares as the claim. He doesn't mention genetics. If a Caucasian European has a DNA test it will show markers that are consistent "with out of Africa".
ou're partially right. 'Humans' have arisen in different places and times, but the fossil evidence strongly suggests they radiated outwards from Africa. The popular public idea is that we evolved in Africa and migrated out to other lands in a one sustained wave. The popular science view is there were diverse populations in Africa and some migrated out in waves. An important factor is some of those people went back into Africa and their descendants migrated out again. The popular idea could be renamed 'The In and Out and In and Out of Africa Theory.'
We're living in exciting times. Only 20 years ago, we assumed Neanderthals went extinct through stupidity and being outgunned by us. Now we know the survived in our gene pool. Even our family tree has been growing to include not only Neanders, but the Floriensis and Denisovans. Another 20 years and who knows what we'll know?
Because it doesn't work like that, the observable differences while dramatic to some is of little consequences to scientist, there is no dramatic uniqueness to all modern humans, on all continents one can observe variations in phenotype due to micro evolution, culture and physical characteristics have nothing to do with each other.
They do know this. And there is more and more evidence. But considering Africa has literally been almost unchanged for billions of years in the context of plate tectonics it makes sense that the initial and oldest ancestors came from Africa. I forgot the technical name for it, but Africa sits upon one of these massive rock like structures that has not moved, while all others have sort of moved around it. It's only recently in earths history that Africa is changing with the Somali rift valley starting to split.
originally posted by: LadyGreenEyes
originally posted by: 3daysgone
Why couldn't human beings have evolved in different places at different times? Why do people think that we all come from one man and one woman? That would be one explanation for the major differences in the uniqueness of humans. It would explain the difference in physical characteristics that is obvious between the different cultures.
Ah, but then people would have to accept that we aren't all the same.
Looking around, not sure that would work out well.
originally posted by: GetHyped
originally posted by: LadyGreenEyes
originally posted by: 3daysgone
Why couldn't human beings have evolved in different places at different times? Why do people think that we all come from one man and one woman? That would be one explanation for the major differences in the uniqueness of humans. It would explain the difference in physical characteristics that is obvious between the different cultures.
Ah, but then people would have to accept that we aren't all the same.
Looking around, not sure that would work out well.
The DNA evidence says that yes, we all share a common ancestor. Sorry, you are not different, you are one of us.
originally posted by: 3daysgone
a reply to: LadyGreenEyes
Well we are all still the same, evolution has pointed everyone in the same direction. I am just speculating that the beginnings could very well be a lot different than what the accepted theory would indicate.
originally posted by: 3daysgone
a reply to: dreamingawake
Several more than two that the OP shares as the claim. He doesn't mention genetics. If a Caucasian European has a DNA test it will show markers that are consistent "with out of Africa".
I am sure since we are all made up of the same stuff we are all related, but I am wondering if evolution of man didn't just start out in one region, but at least a few different regions. The oldest may very well be out of Africa or China or India. It is all speculation with a few tidbits of what some consider evidence strewn throughout the theories.
originally posted by: Astyanax
a reply to: firefromabove
There, there. You don’t have to believe it if it makes you so upset.
And you are free to cling on to your beliefs.