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
Worlds 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

Confederate History - Dispelling the Myths
2015-07-03 3:28
History books, the media, the school systems, etc abound in falsehoods and inaccuracies of Confederate and Southern history. This fact sheet will help to clarify and dispell some of these rampant inaccuracies. MYTH - The War of 1861 - 1865 was fought over slavery. FACT - Terribly untrue. The North fought the war over money. Plain ...
Gays Rights May Open Door for Pedophile Rights
2015-07-03 3:31
Democrats have attempted to normalize pedophilia as a sexual orientation. A recent Supreme Court ruling on same-sex marriage may soon allow pedophiles to argue they are suffering discrimination. “Using the same tactics used by ‘gay’ rights activists, pedophiles have begun to seek similar status arguing their desire for children is a sexual orientation no different than heterosexual or homosexuals,” writes Jack Minor ...
Government Trolls Are Using ‘Psychology-Based Influence Techniques’ On YouTube, Facebook And Twitter
2015-07-03 3:56
Have you ever come across someone on the Internet that you suspected was a paid government troll? Well, there is a very good chance that you were not imagining things. Thanks to Edward Snowden, we now have solid proof that paid government trolls are using “psychology-based influence techniques” on social media websites such as YouTube, Facebook and Twitter. ...
Artificial Intelligence Takes the Battlefield: Who Is Really Running Jade Helm 15?
2015-07-03 2:31
Who is really going to be running Jade Helm 15? There is more to the story than just training for martial law in states designated as “hostile states” – already a chilling pretext with overtones of greater federal power that could spiral out of control. But it seems that it is actually A.I. – artificial intelligence – that is at the helm ...
Robot kills man at Volkswagen plant in Germany
2015-07-03 2:32
A 22-year-old worker was grabbed by the robot and crushed against a metal plate A robot has killed a man at a Volkswagen car factory in Germany. The 22-year-old worker died from injuries he sustained when he was trapped by a robotic arm and crushed against a metal plate. The man, who has not been named, was part of a team that ...
More News »