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Supernova Storm Wiped Out Mammoths?
Discovery News ^ | 09/28/05 | Jennifer Viegas

Posted on 10/04/2005 11:47:27 PM PDT by planetesimal

A supernova blast 41,000 years ago started a deadly chain of events that led to the extinction of mammoths and other animals in North America, according to two scientists.

If their supernova theory gains acceptance, it could explain why dozens of species on the continent became extinct 13,000 years ago.

(Excerpt) Read more at dsc.discovery.com ...


TOPICS: Culture/Society
KEYWORDS: archaeology; catastrophism; clovis; clovisimpact; evolution; extinction; godsgravesglyphs; history; impact; mammoth; supernova
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For those that missed the "World of Elephants" shindig a few weeks ago, which I'm guessing is pretty much everyone. :)
1 posted on 10/04/2005 11:47:28 PM PDT by planetesimal
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To: planetesimal

well, time to change those science books AGAIN as another theory falls on its face. apparently. maybe. for a while.


2 posted on 10/04/2005 11:50:13 PM PDT by GeronL (Leftism is the INSANE Cult of the Artificial)
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To: planetesimal
Except that 30000 to 13000 years ago is withing the memory of mankind (oral traditions, cave paintings), and nothing like this is evident. Being hunted to death seems more likely

Some scholars even believe mankind had memory of Neanderthals. "For in those days there were giants in the earth that bread with the son of man".
3 posted on 10/04/2005 11:56:23 PM PDT by konaice
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To: konaice

Neandertal DNA is not close enough to Homo sapiens DNA for this to happen.


4 posted on 10/04/2005 11:57:49 PM PDT by The Red Zone (Florida, the sun-shame state, and Illinois the chicken injun.)
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To: The Red Zone
Neandertal DNA is not close enough to Homo sapiens DNA for this to happen.

BS. they are closer than horses and asses.

Besides, nobody said the breeding was successful (yielded viable offspring).

5 posted on 10/04/2005 11:59:54 PM PDT by konaice
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To: planetesimal

How long before it's blamed on President Bush?


6 posted on 10/05/2005 12:02:13 AM PDT by Choose Ye This Day (I just stepped in a big pile of sassy.)
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To: konaice

It's hard to call it "breeding" when nothing is born.


7 posted on 10/05/2005 12:02:18 AM PDT by The Red Zone (Florida, the sun-shame state, and Illinois the chicken injun.)
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To: Choose Ye This Day

Bush doesn't care about mammoths.


8 posted on 10/05/2005 12:04:34 AM PDT by Jeff Chandler (Peace Begins in the Womb)
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To: The Red Zone
It's hard to call it "breeding" when nothing is born.

Go learn the difference between horses and asses and donkeys, and then perhaps we can have this discussion.

Remember, its not my theory, but its one possible explanation of that phrase.

9 posted on 10/05/2005 12:05:21 AM PDT by konaice
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To: konaice

I hate it when giants bread with me. Let them get their own bread. You know how big a loaf those guys can eat?


10 posted on 10/05/2005 12:06:46 AM PDT by DannyTN
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To: konaice
Fair point, but many species went extinct around that time, including:
In addition to the tusk evidence, the scientists said arrowheads from North America's prehistoric Clovis culture, which went extinct around 13,500-13,000 years ago, Icelandic marine sediment, as well as sediment from nine 13,000-year-old sites in North America, contain higher-than-normal amounts of radiation in the form of potassium-40 levels.
This is by no means settled science, but interesting nonetheless.
11 posted on 10/05/2005 12:07:32 AM PDT by planetesimal (All is flux)
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To: Jeff Chandler

LOL! Thanks, Kanye!


12 posted on 10/05/2005 12:08:02 AM PDT by Choose Ye This Day (I just stepped in a big pile of sassy.)
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To: planetesimal
"What is exciting about Dr. Firestone's theory is that it can be easily tested," Becker said,

I'm waiting. I'm still waiting. Still waiting. Still.....

13 posted on 10/05/2005 12:08:46 AM PDT by taxesareforever (Government is running amuck)
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To: The Red Zone

14 posted on 10/05/2005 12:10:09 AM PDT by DannyTN
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To: taxesareforever
I'm waiting. I'm still waiting. Still waiting. Still.....
Why not try a personal ad? Or take up a hobby.
15 posted on 10/05/2005 12:14:52 AM PDT by planetesimal (All is flux)
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To: planetesimal
THIS guy has a far more plausible explanation for ice ages and extinctions than any other theoretician I've yet found.
16 posted on 10/05/2005 12:26:55 AM PDT by Don W (Nevermind, I live in CUBA-NORTH! AKA Canuckistan)
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To: konaice

I seriously doubt the 'hunted to death' theory. What really piques my interest is the frozen mastadons found in Siberia that have fresh flowers in their teeth, and unprocessed vegetation in their gastric system. It's like they just up and died, and froze, in minutes.


17 posted on 10/05/2005 12:50:25 AM PDT by SoDak
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To: planetesimal
Image hosted by TinyPic.com
18 posted on 10/05/2005 12:54:08 AM PDT by Old Seadog (Birthdays start out being fun. But too many of them will kill you..)
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To: SoDak
What really piques my interest is the frozen mastadons found in Siberia that have fresh flowers in their teeth, and unprocessed vegetation in their gastric system. It's like they just up and died, and froze, in minutes.

Up here in Alaska, and I speculate also in Siberia, you can have a thin layer of melted earth in the spring, and flowers blooming in just a week or so of sunshine. But underneath you have permafrost.

However there are sink holes with water running underneath, and iced over lakes/rivers that look walk-able. Walk out, fall in, and freeze next to or under the permafrost.

19 posted on 10/05/2005 12:59:27 AM PDT by konaice
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To: konaice

But that's in spring. Wouldn't the coming warming, albeit a short warm season, allow predation and deterioration?


20 posted on 10/05/2005 1:02:26 AM PDT by SoDak
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