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BAMAPHIN 22
04-24-2008, 04:30 PM
Human beings may have had a brush with extinction 70,000 years ago, an extensive new genetic study suggests.

The number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age, according to an analysis released Thursday.

"This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species' history. Tiny bands of early humans, forced apart by harsh environmental conditions, coming back from the brink to reunite and populate the world. Truly an epic drama, written in our DNA," Spencer Wells, National Geographic Society explorer in residence, said in a statement.


http://www.cbsnews.com/stories/2008/04/24/tech/main4040604.shtml

Tetragrammaton
04-24-2008, 11:39 PM
Wow. It really puts our species in perspective.

Eshlemon
04-25-2008, 04:12 AM
This type of event is why Sagan wants us to get of this rock and spread out asap. One theory on the extinction even:

http://en.wikipedia.org/wiki/Toba_catastrophe_theory

Toba catastrophe theory

According to the Toba catastrophe theory, 70,000 to 75,000 years ago a supervolcanic event at Lake Toba, on Sumatra, reduced the world's human population to 10,000 or even a mere 1,000 breeding pairs, creating a bottleneck in human evolution. The theory was proposed in 1998 by Stanley H. Ambrose of the University of Illinois at Urbana-Champaign.[1][2]

On a doom and gloom note, Yellowstone Super is estimated to be many times worse than Sumatra. And occur every 600-800 thousand years...the last one 640,000 years ago.

http://www.extremescience.com/calderas.htm

Dolphan7
04-30-2008, 12:00 PM
Hmmmm.....so science has found that the population of humans was effected by some sort of event and that reduced the total population to 2000 or so? Maybe even less?

Interesting!!!!

=FinTunaWorld=
05-11-2008, 04:05 AM
What is science becoming this days, it's all just theories,specualtions and hypothesis and wishful thinking, I though Science was facts not unsolved theories without a definitely clear cut fact to support whatever matter is being talked about.Earth was created by gasses LOL! Hilarious.

spydertl79
05-14-2008, 03:57 PM
Hmmmm.....so science has found that the population of humans was effected by some sort of event and that reduced the total population to 2000 or so? Maybe even less?

Interesting!!!!
64,000 years before the earth existed though...

Dolphan7
05-14-2008, 04:06 PM
64,000 years before the earth existed though...Really? And when did earth "Exist"?

Remember that no dating method is valid beyond 5000 years or so. Anything beyond that time is "highly" questionable and unreliable. We just don't know.

The point though, forgetting about the date issue, is that some event caused mankind to nearly die out. An interesting scientific parralel to the Noaitian Flood.

spydertl79
05-14-2008, 06:37 PM
Really? And when did earth "Exist"?

Remember that no dating method is valid beyond 5000 years or so. Anything beyond that time is "highly" questionable and unreliable. We just don't know.

The point though, forgetting about the date issue, is that some event caused mankind to nearly die out. An interesting scientific parralel to the Noaitian Flood.
You forgot a "0," radiocarbon dating is accurate to 50,000 years, after that it loses some of its accuracy but still provides usable data.

Tetragrammaton
05-14-2008, 07:51 PM
Remember that no dating method is valid beyond 5000 years or so.


Radiocarbon dating is a radiometric dating (http://en.wikipedia.org/wiki/Radiometric_dating) method that uses (14C) to determine the age of carbonaceous (http://en.wikipedia.org/wiki/Carbonaceous) materials up to about 60,000 years old


There is that.

emeraldfin
05-16-2008, 07:13 AM
Wow lets add this to the rest of the events/processess that will eventually wipe us all out.
At the moment I have......
Global cooling, global dimming, global warming, super massive volcanoes, asteroids, a global epidemic, the North Atlantic Drift stopping and Im sure there are a couple more you could add to that list.

spydertl79
05-17-2008, 12:40 PM
Wow lets add this to the rest of the events/processess that will eventually wipe us all out.
At the moment I have......
Global cooling, global dimming, global warming, super massive volcanoes, asteroids, a global epidemic, the North Atlantic Drift stopping and Im sure there are a couple more you could add to that list.
If you watch the history channel on the right day you'll hear all about all of them.
You forgot locusts and the global epidemic FROM an asteroid.

fishfanfromjerz
05-17-2008, 01:51 PM
Hmmmm.....so science has found that the population of humans was effected by some sort of event and that reduced the total population to 2000 or so? Maybe even less?

Interesting!!!!



the funny thing is......back then, there was some dude getting excited cause some chick he hit on told him that she'd "maybe" bang him if he was the last guy on earth........

Dol-Fan Dupree
05-19-2008, 06:57 PM
Wow lets add this to the rest of the events/processess that will eventually wipe us all out.
At the moment I have......
Global cooling, global dimming, global warming, super massive volcanoes, asteroids, a global epidemic, the North Atlantic Drift stopping and Im sure there are a couple more you could add to that list.

This one show I watched on the discovery channel mentioned that there could be a huge bubble of magma that comes up from the inner core that basically creates a huge super volcano anywhere when it hits the surface. It is like a huge bubble coming up and bursting on the surface. It is theorized that it caused one of the mass extinctions.

There is also a few things the sun can do at any moment that can wipe us all out

Dolphan7
05-20-2008, 09:05 PM
There is that.Well there is this too! :lol:

http://www.scienceagainstevolution.org/v10i10f.htm

spydertl79
05-21-2008, 02:55 AM
Well there is this too! :lol:

http://www.scienceagainstevolution.org/v10i10f.htm
Yeah... you did read where it said that Carbon 14 dating is only accurate to 50,000 years, right?
50,000>6,000

Tetragrammaton
05-21-2008, 10:08 AM
Well there is this too! :lol:

http://www.scienceagainstevolution.org/v10i10f.htm

Dolphan7, your own site says that carbon dating lasts for up to 50,000 years.

Dolphan7
05-21-2008, 11:44 AM
Dolphan7, your own site says that carbon dating lasts for up to 50,000 years.Did you read this part?



But carbon 14 dating can be calibrated, and it has been discovered that certain corrections have to be made to “radiocarbon years” to convert them to “calendar years.” Knowing these correction factors allows carbon 14 measurements to yield very accurate ages, back to 4 or 5 thousand years. But beyond 5,000 years, we have to guess what the correction factors are, so the ages are only as good as our guesses.


The point is, and always has been, that beyond 5000 or so years, it is all guess work - NOT a scientific definite!

spydertl79
05-25-2008, 10:20 PM
I don't feel like arguing with you continuously... you are wrong. Carbon 14 dating is deadly accurate to 5000 years but very accurate to 50,000. After that it becomes less accurate but its obvious that carbon samples have been found taht have experienced WAY too many half lifes to be only 6,000 years old.
There are also other forms of dating such as geological features, fossils, etc.
Do you think that Dinosaurs existed on earth simultaneously with the dinosaurs and the fossils were magically buried at different depths? The cross testing of radiometric dating with fossils has confirmed that the earth is MUCH older than 6,000 years.

Debunk this and I will be convinced
http://www.actionbioscience.org/evolution/benton.html

HurriPhin
06-17-2008, 03:53 AM
:rotfl1:

Carbon 14 dating is deadly accurate to 5000 years but very accurate to 50,000.

The more we think we know, the more we realize we don't know damn thing.

m i n o
06-17-2008, 09:20 AM
and people laugh or are disgusted at people who sleep with their cousin's. if it weren't for inbreeding alot of us may not exist.

HurriPhin
06-19-2008, 01:50 AM
and people laugh or are disgusted at people who sleep with their cousin's. if it weren't for inbreeding alot of us may not exist.

You must have some crazy tihs going on at your family reunions, uh.

m i n o
07-02-2008, 03:46 PM
You must have some crazy tihs going on at your family reunions, uh.
haha..it can get alittle crazy once the booze is spread around. but im safe as i think half the girls in my family are "on the otherside" and the other half..well..i guess they don't bring enough booze.