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DNA testing refutes Neanderthal ancestry
Leipzig (UPI) March 16, 2004 DNA analysis by researchers across Europe have yielded the best evidence yet Neanderthals made no significant genetic contributions to modern humans. The findings may help settle an ongoing debate on whether Homo neanderthalensis interbred enough with Homo sapiens when they coexisted -- from about 100,000 to 150,000 years ago -- to contribute to the modern human gene pool, said the researchers. The team, from Germany, France, Switzerland, Austria, Croatia and Sweden, tested mitochondrial DNA from 24 Neanderthal and 40 early modern human remains. The mtDNA, as it is called, is transferred only from mother to child. Despite the ages of the fossils, the researchers found four of the Neanderthals and five of the early humans contained enough mtDNA for comparison. Neanderthals lived roughly 150,000 to 30,000 years ago in Europe, parts of Asia and the Middle East. Modern-day humans arose between 200,000 and 100,000 years ago. All rights reserved. Copyright 2004 by United Press International. Sections of the information displayed on this page (dispatches, photographs, logos) are protected by intellectual property rights owned by United Press International. As a consequence, you may not copy, reproduce, modify, transmit, publish, display or in any way commercially exploit any of the content of this section without the prior written consent of by United Press International. Community Email This Article Comment On This Article Related Links SpaceDaily Search SpaceDaily Subscribe To SpaceDaily Express Explore The Early Earth at TerraDaily.com
Researchers Discover Half-Billion Year-Old Fossils
Blacksburg, VA (SPX) Jul 12, 2005Scientists interested in ancient life have a wealth of fossils and impressions frozen in rocks that they can study from as far back as 540 million years ago when animals with shells and bones began to become plentiful. But evidence of complex life older than 540 million years is scant and difficult to study. |
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