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Blaze Diem Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:09 PM
Original message
Gene study suggests Native Americans came from Siberia
http://news.yahoo.com/s/afp/20071127/ts_alt_afp/usamericasrussiaanthropologymigration
------------------------------------------------
WASHINGTON (AFP) - A US genetic study bolsters claims that Native Americans are descended from one migrant group that crossed a lost land link from modern Siberia to Alaska -- not waves of arrivals from Asia, as rival theories say.

The new study by the University of Michigan, published Monday, examined genes of indigenous people from North to South America and from two Siberian groups, the university said in a report introducing the research.

Analysis found one unique genetic variant widespread across both the northern and southern American continents -- suggesting that all Native Americans were descended from a single group, not various ones as the rival theory holds.

This variant "has not been found in genetic studies of people elsewhere in the world except eastern Siberia," the report said.

(snip)

Anthropologists and archeologists have long argued over whether Native Americans are descended from migrants who crossed by land to the northwest 12,000 years ago, or waves of arrivals by sea and land from elsewhere in Asia and Polynesia beginning up to 30,000 years ago

--------------------------------------------------------

Not politics of the day, but I find this interesting as to the evolution of the (now) USA.



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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:11 PM
Response to Original message
1. this is nothing new
Edited on Tue Nov-27-07 12:12 PM by CountAllVotes
it is aka "The Bering Straits Theory", one that anthropologists embrace.

As for Indian people, we believe we came from this land that we are on right now now called "America". This is where we came from, where the Creator placed us and all that lives on this land.

:dem:
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dmallind Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:18 PM
Response to Reply #1
3. I'm sorry I might not understand.
I too had long heard that the landbridge theory was widely accepted amongst anthropologists etc. Now the ethnobiology seems to confirm that, do you mean the belief is still widespread amongst the Indian tribes that this is technically, scientifically wronga nd that their ancestry is entirely on this continent, or recounting the idea as folklore which is not meant to be taken as contradiction to science? In other words I suppose I'm asking in what context "belief" is used.

Note there is no challenge or affront implied. I'm just curious.
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:21 PM
Response to Reply #3
6. it is a theory
Edited on Tue Nov-27-07 12:21 PM by CountAllVotes
now they have purported genetic evidence.

As a person of Native ancestry I do not believe the Bering Straits theory and I never will. It seems pretty difficult to believe that thousands of years ago people crossed an bridge of solid ice to get to this continent.

I do not speak for all Indian people, I speak for myself and I tend to very much dislike the beliefs and theories supported by anthropologists.

:dem:
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:27 PM
Response to Reply #6
7. So you're a creationist essentially?
Do you disagree with the theory of evolution as well?

Also, the land bridge theory isn't one where people crossed a sheet of solid ice to get here. It was land, the sea levels were low enough to expose the land bridge. It wasn't solid ice at all, which makes it seem ridiculous.

Why do you dislike the theories and evidence presented by anthropologists? Is it simply because their evidence and theories surrounding it contradict your creationist beliefs, or is there something more?
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:39 PM
Response to Reply #7
13. one main reason
a man named Kroeber :grr:
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:13 PM
Response to Reply #13
18. Alfred Kroeber?
What about his work did you hate? What about it would poison you to all Anthropology and Archaeology?
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:19 PM
Response to Reply #18
19. how about Ishi, the Last Yahi?
Edited on Tue Nov-27-07 01:20 PM by CountAllVotes
that should be enough right there but I could (and have) written a book about Kroeber's crimes. He was a loathsome and despicable ANTHROPOLOGIST that was supposed to be a real genius.

Yeah right.

My grandfather remembered going to see "them" display Ishi in a cage near Golden Gate Park in San Francisco. He thought it was deplorable and my grandfather was not of Native American descent.

Kroeber's works are highly controversial and despised by many Native Americans.

The case of "Ishi" is just ONE example of many.
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:24 PM
Response to Reply #19
22. How does that invalidate things like Evolution
One Anthropologist working early in the 20th century therefore makes all current Anthropolgists and Archaeologists incorrect? Does Kroeber's work invalidate Radiocarbon dating, Geological evidence, and even Evolution?

I can point to much worse examples of Anthropology and Archaeology than Kroeber and Ishi, nearly all from 50 or more years ago, but that doesn't mean that the entire field of study is invalid and corrupt.
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:26 PM
Response to Reply #19
23. You're claiming that Kroeber mistreated Ishi?
Have you got any evidence Ishi was ever kept in a cage near Golden Gate Park other than anecdotal?

I understand he was hospitalized and quarantined for tuberculosis, but I haven't heard about this.
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:30 PM
Response to Reply #23
26. He was kept in a museum for a while
Kroeber wasn't holding him, the museum was, as they had taken possession of him as a young boy. It was 1911. Quite deplorable really, and they did have him on display if you can believe that. It's true. That's how Kroeber actually heard about him and came to study him. The work is definately controversial, though I don't see how this invalidates genetic evidence or radiocarbon dating.

Much Archaeology and Anthropology from before 1960 is tainted in some ways by either horrendous techniques bordering on, or actually outright being Antiquarian and unscientific, or poor treatment of other cultures.
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:31 PM
Response to Reply #26
27. Was it against Ishi's will?
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:40 PM
Response to Reply #27
29. Apparently Not
But who knows. He died of TB I think 4 years later, and supposedly was content. His life prior to that was proabbly pretty harsh, according to his stories. Always on the run, the lamb, his family murdered and butchered, etc. His tribe all but destroyed. Then they put him up with a bed and three warm meals at the museum. He was probably happy (and that was what he said at least), but that doesn't necessarily make it right.
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:41 PM
Response to Reply #29
31. Does it make it wrong?
Does it make Kroeber a bad guy?

Invalidate the land bridge theory?
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:45 PM
Response to Reply #31
33. I would say No on both counts
Kroeber was a man of his time. He worked with Ishi because his speciality was in trying to record as much of the native Californian culture as he could before it was all gone, and Ishi was, or at least claimed to be, the last member of a tribe. What was Kroeber supposed to do? Ignore him? I don't understand how this makes Kroeber a bad man.

Nor do I understand how a cultural anthropoligist's work from 1911-1916 affects the relevance of genetic or physical science data from 2008, or a well established theory of human origins and migration.
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puebloknot Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 08:02 PM
Response to Reply #26
40. It's been a long time since I read the story of Ishi, but...
...I recall from the book (Kroeber as author?) and from a film that Ishi stumbled into "civilization" as the last of his tribe, when he became too desperate, hungry, and lonely to try to make it alone any longer. He was not depicted as a young boy in those accounts.
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 09:18 PM
Response to Reply #40
44. Ishi was not a young boy
he was a man about 30+ years old. The rest of his family had been murdered leaving him alone in the wilderness in the foothills of the Sierras. So, Ishi had no choice but to come forward. He did not know if he would be shot on site like an animal the way his mother and sister were.

Ishi, the human, had NO CHOICE.

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puebloknot Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 04:25 AM
Response to Reply #44
52. That is such a touching and tragic story, and it haunts me to this day.
I can think of no greater loneliness than that which he suffered.
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 09:14 PM
Response to Reply #23
42. Ishi was caged and displayed
It was a known thing at the time. Whether Ishi "liked" it or not is unknown being he did not speak English.

I find it dehumanizing myself and that is exactly what it was. He was treated like an animal.

Later he went on to work in the museum in Golden Gate Park. He contracted T.B. from Kroeber's wife who also died of T.B. FYI.

Ishi deserved far more than to be treated like an animal. Ishi was after all "human".

If people find this to be "ok", I want nothing to do with such persons. They might as well join up with the rest of these freaks walking in lockstep together these days IMO.

If you do not believe it, read about Ishi the Last Yahi and you will find that what I say are true words.

Kroeber was a pompous awhole IMO and I have found most of his work to be not the least bit credible. So yeah, I got a bone or two to pick with this now dead idiot.

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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 10:04 PM
Response to Reply #42
47. Have you got any evidence to back that up?
Because it just looks like you're making things up.
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 10:03 AM
Response to Reply #47
54. if my late grandfather is not good enough evidence
I do not know what is. He was a native of San Francisco born in the 1890s and his father (my great grandfather who also died of TB) took him to Golden Gate Park to view him caged up for all to see. I do not know if they charged for this or not. I wouldn't be surprised if they did.

There are more writings likely to be found in some old issues of the San Francisco papers no doubt. And yes, it was true alright. Ishi was caged up like an animal. This is one of the many reasons I despise the likes of Kroeber. Perhaps he enjoyed the spectacle, I do not know.

:kick:
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 12:30 PM
Response to Reply #54
56. No, of course he's not good enough evidence.
Anecdotal evidence from family members from anonymous message board posters aren't evidence of anything.

Googling of Kroeber and Ishi indicates no mistreatment of Ishi and no cruelty or bad science from Kroeber.

Nor have you explained what any of this has to do with the Bering land bridge.

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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:31 PM
Response to Reply #6
10. ...
"It seems pretty difficult to believe that thousands of years ago people crossed an bridge of solid ice to get to this continent."

It was a land bridge. Thousands of years ago the sea level was much lower, the bering straight wasn't there. Not that I don't think people couldn't cross the sea on pack ice. The Inuit travel hundreds of miles across pack ice every winter.

It seems pretty difficult to believe that Native Americans didn't cross over from Siberia.
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CountAllVotes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:54 PM
Response to Reply #10
14. how do you know?
How does anyone know?

Where is the evidence and the archaeology to support this claim?

There is none.
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:54 PM
Response to Reply #14
15. Did you read the OP?
Because it's about the latest evidence that Native Americans came from Siberia.
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SteelPenguin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:21 PM
Response to Reply #14
21. Well there's tremendous evidence
30,000 years ago and before, there were people all over Europe, Africa and Asia. This is shown in archeological evidence in numerous examples and dated in various ways, but more effectively from radiocarbon dating. No evidence for people living in the America's have been found at that point.

Then at the period of glaciation, when a land bridge (not an ice bridge) between Asia and the America's was formed (which has been shown through geological evidence), there is an explosion of archaeological sites. They spread rapidly. Now there is also genetic evidence that Native American's are genetically tied to the groups in Siberia.

Unless you don't believe in Science, from basic biology, geology, physics, and chemistry, then it makes the most sense at present. Do we KNOW that all, or even any, Native American's came across this land bridge? No. They had to get here somehow though, and right now that's looking like the most likely answer. There is no other theory that even comes close to having any kind of support.

Nobody 'knows' that this is true, but it's the best theory by far availible and based on a tremendous amount of data and research.
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CatWoman Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:28 PM
Response to Reply #14
25. you need to check out "Journey of Man"
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BoneDaddy Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:55 PM
Response to Reply #14
35. Yet you are so ready to
believe that the Creator placed your ethnicity here "divinely", while the anthropological and genetic evidence shows something much more believable than your postulations?

And here I thought Native Americans understood the difference between myth and logos.
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dmallind Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:31 PM
Response to Reply #6
12. understood. Mind if I ask a bit more?
WHY is it that you disagree? Certainly there is at least subjective evidence - we can look at physiological parallels and lack of very old hominid fossils in the US for example - for a recent migration. Is this essentially a religion-based disagreement, or do you see any negative connotations in being ethnically linked to Eurasian groups, or is there competing science of which I'm not informed?

I'm neither an anthropologist nor anyone who has a vested interest in the answer. Frankly I just hadn't heard that this was not pretty much the universally accepted idea before.
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:00 PM
Response to Reply #6
16. Wasn't the Bering land bridge LAND rather than ice? IIRC
the sea levels were much lower then, so they think they migrated across solid ground........
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14thColony Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:09 PM
Response to Reply #6
17. Repeat
Edited on Tue Nov-27-07 01:11 PM by 14thColony
Self-deleted
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mudesi Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 02:30 PM
Response to Reply #6
38. You're wrong, of course
Why do people choose ignorance over knowledge?

Science has found evidence to support the theory. It's not just a "theory" anymore, it's probably a fact now.
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Marr Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 01:17 PM
Response to Reply #6
57. It's easier to believe that a deity created nearly identical human creatures
on several different continents, independent of one another? This seems an odd use of Occam's razor.
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Bobbieo Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:19 PM
Response to Reply #1
5. I minored in Anthro in college and believe Native Americans came here
to the New World both by land and sea. For instance, the Inuits of Alaska and Canada are of Siberian origin but the Cocopah tribe in SW AZ look like Pacific islanders who came north though Mexico. Just two of the more than 400 tribes in the US and Canada.
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Evoman Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:49 PM
Response to Reply #1
34. No, your ancestors were probably not placed here by a creator.
There is absolutely no evidence backing that up. They most likely came by the Bering land bridge.
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Yupster Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 02:50 AM
Response to Reply #1
51. I think the newness is
that it was a small group that came to the New World rather than the waves of people over thousands of years like many assumed.

I saw a tv special that I think was about this same report not long ago, and the guy was theorizing that the entire population of the New World may have come from a group as small as 30 individuals.

That was certainly something new. He was using DNA evidence to prove his thesis. Don't know enough about it to say if I think he was right or wrong, but his claim was certainly new.
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magellan Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:13 PM
Response to Original message
2. Several years ago I read about this suspicion
It's very interesting to learn they've now backed it up with genetic testing.
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ret5hd Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:18 PM
Response to Original message
4. Maybe we can prove they were illegals!
Nobody was here to check their papers, right? So maybe we are justified in treating them as second class citizens!
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XemaSab Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:27 PM
Response to Original message
8. Either that or the same people
colonized Asia, Siberia, and the Americas, and were later supplanted in most of Asia by the "Asians."

Interesting study. :)
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xchrom Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 12:27 PM
Response to Original message
9. fascinating. -- just from siberia.
although i believe most first nations people came from siberia -- i didn't think the evidense was going to run so solidly in one direction.
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marc_a_b Donating Member (8 posts) Send PM | Profile | Ignore Tue Nov-27-07 12:31 PM
Response to Original message
11. nothing new
I think this had been demonstrated before. Honestly the only big resistance to this comes from Mormons who believe Native Americans are decendent from a lost tribe of Isralites from 600 B.C. This stems in part from the Curse of Ham theology that was popular around the time Smith founded the religion.
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BrotherBuzz Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 02:15 PM
Response to Reply #11
37. It's new to me
This theory states there was one migrant group versus many swarms over time. Back when I was a student, the accepted theory was that there were at least four major migrations.


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DS1 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:20 PM
Response to Original message
20. Pilgrims - Fighting Communism since 1492
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Lydia Leftcoast Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:28 PM
Response to Original message
24. The genetic evidence (and just people's appearance) speaks for an Asian origin
When I first lived in Japan, I was surprised to see people who looked Native American. (The Japanese like to believe that they're "pure," but their ancestors actually come from about four different places.)

This doesn't mean that other populations didn't come along over the years and get absorbed by the majority. You could have a "founder" population from Siberia, accounting for the genetic marker existing throughout the Americas, with smaller populations coming from other parts of the world but not being large enough to maintain a distinct identity.
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14thColony Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:57 PM
Response to Reply #24
36. Actually
Edited on Tue Nov-27-07 02:03 PM by 14thColony
an increasing number of pre-Clovis sites (pre-12,000 years old) on the East Coast indicate someone ELSE was here before the arrival of the Siberians about 12,000 years ago, and some of these older people may have made it as far as the Pacific Northwest before the Siberians arrived. Kennewick Man may have been a member of this older population. Based on a variety of anthropological and DNA evidence, it appears this earlier group of immigrants was from what is now coastal Europe, possibly an off-shoot of a paleolithic culture called Solutrean. Solutrean spear-points and hand-axes are unique in design, unlike any others from the paleolithic period except those found at these odd pre-Clovis sites in the eastern US. And there's DNA evidence for this migration too - the mitochondrial X Hapologroup is found in up to 25% of some northeastern Native America tribes, and is found as far west as the Pacific Northwest is dwindling amounts, but is completely absent from modern Siberia. Haplogroup X is virutally unique to ancient European populations. It appears increasingly likley that the Solutreans pre-dated any other ancient groups arriving in North America, and may have been joined later by proto-Polynesians and other immigrant groups, but ultimately all these older groups appear to have been completely out-competed and essentially driven to extinction by the Siberians, with nothing but a genetic trace left at their original point of colonization in the northeast of the US. Similar genetic ghosts of the other older groups (if they existed) might eventually be found in other places in the Americas.

So this study could just as easily be interpreted as showing that the "winners" of the colonization struggle were the Siberians, the ancestors of practically all modern Native Americans, but it does not prove they were the "first" or the "only" in the Americas.

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nealmhughes Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 02:52 PM
Response to Reply #24
39. I once ahd a student who was a Hopi and another from Japan. I honestly saw little
superficial difference between them, myself. Maybe a bit more pronounced eye folds on the Japanese boy, but when I took off my glasses they were twins!
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OnceUponTimeOnTheNet Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:38 PM
Response to Original message
28. K&R Interesting read.
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galileo3000 Donating Member (193 posts) Send PM | Profile | Ignore Tue Nov-27-07 01:41 PM
Response to Original message
30. I once read an article entitled, "the people who got here first"
I think it was Dave Barry, but it essentially pointed out that the title "Native American" was a misnomer, based on the evidence.
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Clark2008 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 01:42 PM
Response to Original message
32. Can I hear a DUH...
Oh... and a reference to the Bering Strait.
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Shanti Mama Donating Member (625 posts) Send PM | Profile | Ignore Tue Nov-27-07 08:52 PM
Response to Original message
41. My daughter, who is Nepali, laughingly tells me that she is
more "American" than I am! I love her even more for that. (I'm German-English-Swedish-Danish)

Actually, having written that I'll say how interesting it is, living here in Kathmandu, to talk with Europeans who just cannot comprehend this melting pot. My Danish friends can trace their ancestors back to the time when mine was given the choice of the New World or jail in the 1600s.
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KoKo Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 10:10 PM
Response to Reply #41
48. Welcome to DU, "Shanti Mama"! However did you find DU?
All the way from Nepal? :hi:
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Shanti Mama Donating Member (625 posts) Send PM | Profile | Ignore Thu Nov-29-07 01:29 AM
Response to Reply #48
59. Thanks.
I've actually been hanging around since 2003, I think. One can be concerned about American politics and live half way round the world... I have no memory of how I originally found DU but I'm now an addict!
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JVS Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 09:15 PM
Response to Original message
43. ILLEGAL IMMIGRANTS! AARRRRRGGGHHHH!
;-)
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Odin2005 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 09:19 PM
Response to Original message
45. I think this goes it the "NO, DUH" column. n/t.
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McCamy Taylor Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 09:58 PM
Response to Original message
46. Some indigenous people will argue with this....
just as creationists say they were made from clay 5000 years ago, some indigenous people in the Americans believe they evolved or were created here.

So do not be surprised by the backlash. Sacred, deeply held beliefs are hard to shake. Especially when Native Americans will argue that the science is being used as a way to challenge their rights to this land and lump then in with all the other immigrants.
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galileo3000 Donating Member (193 posts) Send PM | Profile | Ignore Wed Nov-28-07 02:45 PM
Response to Reply #46
58. Like Fleas arguing over a dog (n/t)
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scarletwoman Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Nov-27-07 10:11 PM
Response to Original message
49. From the article: "The study also found that genetic diversity increased the further away people
were from the Bering Strait..."

How does that work? Where does the "genetic diversity" come from if everyone is descended from the same original population?

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14thColony Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 02:37 AM
Response to Reply #49
50. It works very nicely
Any groups of living beings, once separated from one another and placed under divergent environmental pressures, will diverge genetically as each group tries to adapt to its new environment. This is a basic principle of evolutionary biology, and it applies just as well to humans as it does to ferns.

Assume that the ancestors of all present-day Native Americans were the Siberians, and they all entered North America in Alaska. One group obviously just stayed there, over time becoming the various Inuit, Aleut, and Eskimo tribes, but all from the same group. By contrast the tribes of the upper Amazon, whose ancestors came from a splinter group that, say, first went east into Manitoba, then south into the Plains, then maybe eventually down to Florida, then along the coast to the Amazon, then upriver to where they became isolated from other groups (we're talking over millenia here). That group would have seen the greatest chance for genetic change as their ancestors encountered various environments, and (if what I wrote previously pans out) they would have been more likely to encounter and inter-marry with older groups such as Solutreans or proto-Polynesians before those groups disappeared under pressure from the newcomers. Result: greater genetic change from the original Siberian population than those Inuit who settled down as soon as they arrived, encountering no older human populations and living in an environment that was just like their Siberian forbearers'.

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muriel_volestrangler Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 12:25 PM
Response to Reply #50
55. And yet, for humans overall, the genetic diversity decreases from the point of origin
In the new work reported this week, researchers Franck Prugnolle, Andrea Manica, and François Balloux of the University of Cambridge show that geographic distance from East Africa along ancient colonization routes is an excellent predictor for the genetic diversity of present human populations, with those farther from Ethiopia being characterized by lower genetic variability. This result implies that information regarding the geographic coordinates of present populations alone is sufficient for predicting their genetic diversity. This finding adds compelling evidence for the RAO model. Such a relationship between location and genetic diversity is indeed only compatible with an African origin of modern humans and subsequent spread throughout the world, accompanied by a progressive loss of neutral genetic diversity as new areas were colonized. The loss of genetic diversity along colonization routes is smooth, with no obvious genetic discontinuity, thus suggesting that humans cannot be accurately classified in discrete ethnic groups or races on a genetic basis.

http://www.sciencedaily.com/releases/2005/03/050310103042.htm


:shrug:
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symbolman Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Nov-28-07 05:21 AM
Response to Original message
53. I lived and worked in Fairbanks, Alaska
for about ten years starting with the building of the Pipeline. Drove cab for two of those years and looked for Uranium by helicopter for two summers in the bush, meeting many "natives" along the way.

Also studied Anthro as a minor in college. I can tell you as an artist (majored in sculpture) that this study only proves what I've told people all along.. That there WAS a land bridge, and that the Native Americans came from Siberia (right next door to Alaska) .. Most folks don't know that the Apache and certain native folks in Alaska can understand each others language easily. There is no other answer, no one had 747's back then to travel between Alaska and Arizona, this study just lets me know that I was right all along. Personally, I belive the Native Americans are of a Chinese origin long, long ago - and just as wise :)
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puerco-bellies Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Nov-29-07 02:03 AM
Response to Original message
60. I am N'de, of the Athabaskan people, along with Dine'
We are directly related to tribes from Alaska Canada, Washington, Oregon, California, and across the Southwestern U.S. Our creation myth is our own. We were put here by the creator, whether physically or spiritually is for ones personal belief. I say fuck you to those assholes that would berate a person for voicing what their culture has taught them.
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WheelWalker Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Nov-29-07 02:20 AM
Response to Original message
61. "It is perhaps less important to know...
Edited on Thu Nov-29-07 02:23 AM by The Village Idiot
from where we come, than to understand where we might aspire to be." Yodananda Samadhi
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Quixote1818 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Nov-29-07 03:58 AM
Response to Original message
62. Interesting. Thanks for posting. nt
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