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Tibetans get high-altitude edge from extinct Denisovans' genes
L.A. Times ^ | By Julia Rosen

Posted on 07/03/2014 3:43:35 PM PDT by BenLurkin

orget climbing Mt. Everest — for most humans, just eking out a living on the harsh Tibetan plateau is challenge enough. But Tibetan people have thrived there for thousands of years, and a new study says it's thanks to a genetic adaptation they inherited from an ancient human relative..

The study, published Wednesday in the journal Nature, identifies a long segment of DNA shared by the extinct people known as Denisovans and modern-day Tibetans. The segment contains the gene scientists think gives Tibetans a lung up over lowlanders at high altitudes.

No one knew the Denisovans ever roamed the Earth until four years ago, when scientists sequenced the DNA of a finger bone unearthed in a cave in the Altai Mountains of southern Siberia. The genome exhibited similarities to that of modern humans and our extinct Neanderthal relatives, but it was different enough to be considered a distinct species.

Like Neanderthals, Denisovans mated with their human contemporaries, scientists soon discovered. People of Melanesian descent who today inhabit Papua New Guinea share 5% of their genetic makeup with the Denisovans.

(Excerpt) Read more at latimes.com ...


TOPICS: Science
KEYWORDS: denisovans; godsgravesglyphs; helixmakemineadouble; neandertal; neandertals; neanderthal; neanderthals

1 posted on 07/03/2014 3:43:35 PM PDT by BenLurkin
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To: BenLurkin

Maybe they are kin to the Stratos Cloud Minders.


2 posted on 07/03/2014 3:48:53 PM PDT by yarddog (Romans 8: verses 38 and 39. "For I am persuaded".)
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To: BenLurkin

But...But...all peoples is equals, so how can this be?

Someone has a genetic advantage?!

Can’t be. We’re all the same under the skin.

So Sayeth El Supremo Court.


3 posted on 07/03/2014 3:49:13 PM PDT by Regulator
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To: BenLurkin

Thanks for posting. Good read.


4 posted on 07/03/2014 3:54:01 PM PDT by JimSEA
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To: yarddog
Lessee....we'll make a quick comparison...

Nope!

5 posted on 07/03/2014 3:55:41 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
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To: BenLurkin

Like the song said “I am the Ape Man.......”


6 posted on 07/03/2014 3:59:31 PM PDT by njslim (T)
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To: BenLurkin

so Bigfoot existed after all?


7 posted on 07/03/2014 4:28:46 PM PDT by blueplum
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To: BenLurkin

I’m so fascinated with this. Good article from the LA Times, thanks so much for posting.

The Siberian Times has an interesting article too, without the Tibetan reference, however:
http://siberiantimes.com/science/casestudy/news/siberian-girl-comes-back-to-life-after-more-than-50000-years/

A visit to the Altai Mountains, where the Denisovian tooth was found, is on my bucket list. Has been since reading Entering The Circle, a fascinating book by a Russian/Siberian psychiatrist, Olga Kharitidi, who had some very strange experiences there with a shaman.

The National Geographic Genome Project can tell you whether you have Denisovian genes. And/or Neanderthal. https://genographic.nationalgeographic.com/denisovan/


8 posted on 07/03/2014 4:32:38 PM PDT by Veto! (OpInions freely dispensed as advice)
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To: BenLurkin

WOW! People adapted to where they lived. I am amazed. It happens all the time. Just look around.


9 posted on 07/03/2014 5:10:41 PM PDT by vpintheak (I will not comply!)
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To: yarddog

It will please Vaal


10 posted on 07/03/2014 5:38:13 PM PDT by frithguild (The warmth and goodness of Gaia is a nuclear reactor in the Earth's core that burns Thorium)
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To: BenLurkin

Good article. Thanks


11 posted on 07/03/2014 5:51:25 PM PDT by blam
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To: frithguild

Yes, Vaal was one of the better episodes.


12 posted on 07/03/2014 5:54:23 PM PDT by yarddog (Romans 8: verses 38 and 39. "For I am persuaded".)
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To: BenLurkin; 240B; 75thOVI; Adder; albertp; asgardshill; At the Window; bitt; blu; BradyLS; ...
Thanks BenLurkin for the topic, and thanks to a FReeper to (not) be named later for the link! Looks like a good digest ping topic!

13 posted on 07/04/2014 4:33:16 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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Tibetans inherited high-altitude gene from ancient human
http://news.sciencemag.org/archaeology/2014/07/tibetans-inherited-high-altitude-gene-ancient-human

Interbreeding Helped Modern Humans Adapt to New Environment
http://www.archaeology.org/news/2280-140703-tibetans-denisovans-genes


14 posted on 07/04/2014 5:32:16 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

I gots a question, good sir.

If two “species” can interbreed and produce offspring, are they really two different species?

Not being snarky. Just confused.


15 posted on 07/04/2014 5:58:41 PM PDT by Grimmy (equivocation is but the first step along the road to capitulation)
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The Neandertal Enigma
by James Shreeve

in local libraries
"Frayer's own reading of the record reveals a number of overlooked traits that clearly and specifically link the Neandertals to the Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In many Neandertal, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons. But none of the alleged 'ancestors of us all' fossils from Africa have it, and it is extremely rare in modern people outside Europe." [pp 126-127]

16 posted on 07/04/2014 7:45:52 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: Grimmy

The test for whether things were the same species used to be, can they produce *fertile* offspring — hence, a mule is sterile, as are lion-tiger hybrids, and their parents are two different species. That also works to an extent in botany, as it is possible to produce stable hybrids that are not sterile but won’t produce their own kind.

My view on humans is, the use of the term species is an incorrect convention, but that it will pass away as more and more reliance is placed on genetic studies, and morphological divisions lose their importance in the understanding of our ancestors. :’)


17 posted on 07/04/2014 7:51:53 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Thanks.


18 posted on 07/04/2014 8:09:11 PM PDT by Grimmy (equivocation is but the first step along the road to capitulation)
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To: vpintheak

“WOW! People adapted to where they lived. I am amazed. It happens all the time. Just look around.”

Best post of the thread! Yes, we ADAPT! It has a lot more to do with ADAPTING than it has to do with genes!


19 posted on 07/04/2014 8:22:33 PM PDT by GGpaX4DumpedTea (I am a Tea Party descendant...steeped in the Constitutional Republic given to us by the Founders)
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To: Grimmy

Hope that helps.


20 posted on 07/04/2014 10:01:12 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Actually, yes. It did.

As an unedumakated type person, all I have to go on, in these sorts of very interesting articles, is gut instinct.

Sometimes, my gut is telling me it’s tacos! when what I’m actually looking at is a rhubarb and strawberry pie.

In this particular case, you lined it out pretty much how I thought it worked.


21 posted on 07/05/2014 11:57:43 AM PDT by Grimmy (equivocation is but the first step along the road to capitulation)
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