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Old 03-04-2015, 10:19 PM
 
Location: McKinleyville, California
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Quote:
Originally Posted by lycos679 View Post
The research does not say what you claim it says. For example, most African Americans are black, but are not indigenous sub Saharan Africans.



Those claims were not based on science though. The scientific theory is that neanderthals had a high IQ, but, IIRC, the remaining genes didn't present any significant advantage outside of adaptability. Interestingly, some neanderthal genes were bred out in areas that they were supposed to be present in. Evolution apparantly decided that the neanderthal genes were of little, no, or negative value in some areas.
One of the neanderthal genes that is dying out is the gene for red hair, the gene for red hair did not exist in the homo erectus or homo sapiens in Africa, it was a variant on the neanderthal gene. As the red hair gene gets absorbed it gets more diluted and in time will become even more rare.
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Old 03-04-2015, 10:25 PM
 
Location: McKinleyville, California
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Originally Posted by Supachai View Post
Australian Aborigines have, on average, 6 percent Denisovan genes. The interesting thing is that remains of Denisovans were found in Siberia, half a world away from Australia. It may have been that Aborigines got these genes indirectly through mating with another group who had mated with the Denisovans. We only know of the fact that Aborigines and other Melanesians have Denisovan admixture because we were able to sequence Denisovan DNA and compare it with world populations. We had no idea about the existence of this admixture before that.

Admixture with other archaic humans like homo erectus is more difficult to detect because we don't have their DNA to compare. Aborigines are the group that is closest physically to homo erectus, but we can't confirm there was admixture.

This is an Aborigine skull next to an eastern European skull. The differences are striking:
Wow, it almost looks like an erectus skull next to a homo sapiens. It looks more erectus then neanderthal even.
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Old 03-04-2015, 10:33 PM
 
Location: McKinleyville, California
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Originally Posted by Quaker15 View Post
These are very different skulls. Are you sure they are both real?
if you look up aborigine skulls, then yes, these are for real. I do not think race is a social construct. I think that geographically and physically we are different because of ancient admixtures. If one looks up reconstructions of homo erectus fossils from Asia, like peking man, they look remarkably asian. If we had homo erectus genes to use for comparison, we might find that many south east asians have a higher percentage of homo erectus and likewise that many Europeans have a higher percentage of Neanderthal genes and possibly that east Asia and Siberia is higher in Denisovan genes.
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Old 03-05-2015, 06:10 AM
 
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Originally Posted by TheDragonslayer View Post
Incorrect, the current human race is homo sapiens sapiens and except for Africans/sub saharans, have a small percentage of homo sapiens neandertalensis. Homo erectus was the first man to leave Africa, spreading across Asia and southern Europe. Neanderthal did not come out of Africa, neither did Denisovan man, a relative of Neanderthal. Neanderthal and Denisovan man came out of Erectus about 400,000 years ago and Erectus left Africa over 3 million years ago. Homo sapiens developed in Africa around 200,000 years ago and left about 60,000 years ago merging with Neanderthal and Denisovan man in southern Europe/east Asia before spreading eastward towards south east Asia and Polynesia. The Aborigines of Australia settled there about 50,000 years ago and are perhaps the descendants of Neanderthals that kept getting pushed further away as homo sapiens sapiens spread around in all directions.

I propose that we will find the homo erectus gene in some isolated indonesian populations, since homo erectus had settled Asia and south east Asia over 2 million years ago and as homo sapiens did with both neanderthals and Denisovans, Neanderthals and Denisovans had probaly did with erectus, assimilated them into their population or annihilated them. When we find the erectus gene we may find that the Isle of Flores people, aka Hobbit people, were in deed the last remaining homo erectus population to holdout. The hobbits date to about 12,000 years ago, last Neanderthals existed about 28,000 to 30,000 years ago.


Anthropology is one of my studies.

We have basically few known "cousins" and they are Neanderthals, Denisovans, and Homo Erectus.

How much of the above do you think are mixed into Europeans, East Asians, Southeast Asians, South Asians (Indian), and Aboriginals.

I suspect that we have few more cousins yet to be discovered that are mixed into the different races making us even more diverse.
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Old 03-05-2015, 06:20 AM
 
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I think this is a clearer picture:

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Old 03-05-2015, 09:01 AM
 
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Quote:
Originally Posted by TheDragonslayer View Post
One of the neanderthal genes that is dying out is the gene for red hair, the gene for red hair did not exist in the homo erectus or homo sapiens in Africa, it was a variant on the neanderthal gene. As the red hair gene gets absorbed it gets more diluted and in time will become even more rare.
If East Asians are more mixed with Neanderthals, how come there are no red hair found in Asians?
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Old 03-05-2015, 09:54 AM
 
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Originally Posted by TheDragonslayer View Post
Wow, it almost looks like an erectus skull next to a homo sapiens. It looks more erectus then neanderthal even.
I thought it looks more Denisovan.
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Old 03-05-2015, 09:58 AM
 
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Originally Posted by Quaker15 View Post
These are very different skulls. Are you sure they are both real?
That skull is a very famous Aborigine skull from the 19th century. Almost all casts of Aborigine skulls that are for sale today are of that skull.

Here's some different angles:




You can see that the whole skull is much different compared to a European skull. The height, width and length of the brain casing is shaped much more like a homo erectus than a European's skull is. Aborigines are known as exceptional trackers and they have been shown to have much better visual acuity than Europeans. This is due to their larger visual area of the brain, which is located at the back of the head. You can see that the Aborigine skull has a pronounced occipital bun at the back of the skull and they also have larger optical orbits.
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Old 03-05-2015, 10:03 AM
 
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Originally Posted by Quaker15 View Post
If East Asians are more mixed with Neanderthals, how come there are no red hair found in Asians?
Dragonslayer is mistaken. The gene for red hair does not come from Neanderthals. It's thought that some Neanderthals had reddish hair because some Neanderthal individuals were found to have a mutation that is similar to the gene for red hair found in humans. It's not the same gene though.
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Old 03-05-2015, 10:16 AM
 
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I think this is a very good picture of what happened, except there is missing links differentiating the East Asians and Europeans. These two ethnicities must have mixed with some other different group(s).

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