Humans nearly wiped out 70,000 years ago, study says
2008-04-26 0:00

From: edition.cnn.com


Was there a "mitochondrial Eve" who lived in Africa 200,000 years ago?
Human beings may have had a brush with extinction 70,000 years ago, an extensive genetic study suggests.

The human population at that time was reduced to small isolated groups in Africa, apparently because of drought, according to an analysis released Thursday.

The report notes that a separate study by researchers at Stanford University estimated that the number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age.

"This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species' history," said Spencer Wells, National Geographic Society explorer in residence.

"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."

Wells is director of the Genographic Project, launched in 2005 to study anthropology using genetics. The report was published in the American Journal of Human Genetics.

Studies using mitochondrial DNA, which is passed down through mothers, have traced modern humans to a single "mitochondrial Eve," who lived in Africa about 200,000 years ago.

The migrations of humans out of Africa to populate the rest of the world appear to have begun about 60,000 years ago, but little has been known about humans between Eve and that dispersal.

The new study looks at the mitochondrial DNA of the Khoi and San people in South Africa, who appear to have diverged from other people between 90,000 and 150,000 years ago.

The researchers led by Doron Behar of Rambam Medical Center in Haifa, Israel, and Saharon Rosset of IBM T.J. Watson Research Center in Yorktown Heights, New York, and Tel Aviv University concluded that humans separated into small populations before the Stone Age, when they came back together and began to increase in numbers and spread to other areas.

Eastern Africa experienced a series of severe droughts between 135,000 and 90,000 years ago, and researchers said this climatological shift may have contributed to the population changes, dividing into small, isolated groups that developed independently.

Paleontologist Meave Leakey, a Genographic adviser, asked, "Who would have thought that as recently as 70,000 years ago, extremes of climate had reduced our population to such small numbers that we were on the very edge of extinction?"

Today, more than 6.6 billion people inhabit the globe, according to the U.S. Census Bureau.

The research was funded by the National Geographic Society, IBM, the Waitt Family Foundation, the Seaver Family Foundation, Family Tree DNA and Arizona Research Labs.

Article from: http://edition.cnn.com/2008/TECH/04/24/close.call.ap/index.html

Don't miss our radio programs with Lloyd Pye to get more information about the 'mitochondrial Eve'.
Latest Program: Lloyd Pye - The Annunaki & Genetic Engineering from July 3, 2008
Also tune into our program from August 9, 2007: Lloyd Pye - Human Origins, Intervention Theory & Genetic Experimentation

Ed Comment: For more information about another global mapping of the human genome, take a look at The Genographic Project video. Of course for a project like this, National Geographics choose to work with IBM, considering their history on the subject.



Related Articles
World’s oldest ritual discovered. Worshipped the python 70,000 years ago
'Darth Venter' (J. Craig Venter) & The Archon Genomics X Prize
Maryland's Prometheus
Researchers may remake Neanderthal DNA
The Annunaki and the Myth of a 12th Planet
More articles on DeoxyriboNucleic Acid (DNA)


Latest News from our Front Page

Worker fired over hospital's hardline vaccination policy
2015-08-04 20:55
Three others suspended under Waikato DHB’s new rule requiring staff to be vaccinated or wear a mask. One worker has now been sacked for defying a new hard-line policy forcing unvaccinated Waikato District Health Board staff to get flu jabs or wear masks. A number of staff at the DHB have come forward with concerns since the Weekend Herald revealed that three ...
Bulgaria keeps out migrants with a 50 mile razor wire fence along Turkish border
2015-08-04 20:27
Keep out: Police chief Ivan Stoyanov at the fenceStretching far into the horizon, this is the super-fence blocking thousands of migrants hoping for a new life in Europe. As police in Calais struggle to contain thousands trying to storm the Eurotunnel in their desperation to get into Britain, the Bulgarian authorities are shoring up their border with Turkey. The barriers around the ...
DF wants video to tell refugees to stay away
2015-08-04 20:59
 “If you want to seek happiness in Europe, Denmark is not the right place.”  That’s the message that the anti-immigration Danish People’s Party (DF) wants to send loud and clear to asylum seekers.   DF spokesman Martin Henriksen is calling on Denmark to replicate Australia by releasing a video in English and Arabic that will discourage asylum seekers from making their way ...
Dutch King Willem-Alexander declares the end of the welfare state
2015-08-04 18:26
King Willem-Alexander delivered a message to the Dutch people from the government in a nationally televised address: the welfare state of the 20th century is gone. In its place a "participation society" is emerging, in which people must take responsibility for their own future and create their own social and financial safety nets, with less help from the national government. The ...
Why a Caucasian-Japanese is not Perceived as Japanese
2015-08-04 2:15
The Japan Times has a hilarious article about a White guy who is angry and upset at the horrible and racist world we live in because customs agents and border agents are questioning his "right to be Japanese." It's seems that Debito Arodou's experience at border crossings suggest that no one takes a White guy seriously, for claiming to be Japanese. Hmm, ...
More News »