Free Republic 1st Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $20,378
23%  
Woo hoo!! And the first 23% is in!! Thank you all very much!!

Keyword: multiregionalism

Brevity: Headers | « Text »
  • Early Human Ancestors Walked On The Wild Side

    02/16/2006 10:14:54 AM PST · by blam · 16 replies · 597+ views
    Eureka Alert - ASU ^ | 2-16-2006 | Garu Schwartz - Skip Derra
    Contact: Skip Derra skip.derra@asu.edu 480-965-4823 Arizona State University Early human ancestors walked on the wild side Tempe, Ariz. -- Arizona State University anthropologist and Institute of Human Origins researcher Gary Schwartz, along with fellow anthropologist Dan Gebo from Northern Illinois University, DeKalb, have studied fossil anklebones of some early ancestors of modern humans and discovered that they walked on the wild side. It seems some of our earliest ancestors possessed a rather unsteady stride due to subtle anatomical differences. Schwartz and Gebo's findings will be published in the April 2006 edition of the American Journal of Physical Anthropology, but the...
  • New analysis shows three human migrations out of Africa, Replacement theory 'demolished'

    02/10/2006 2:54:05 AM PST · by PatrickHenry · 139 replies · 3,528+ views
    Washington University in St. Louis ^ | 02 February 2006 | Tony Fitzpatrick
    A new, more robust analysis of recently derived human gene trees by Alan R. Templeton, Ph.D, of Washington University in St Louis, shows three distinct major waves of human migration out of Africa instead of just two, and statistically refutes — strongly — the 'Out of Africa' replacement theory. That theory holds that populations of Homo sapiens left Africa 100,000 years ago and wiped out existing populations of humans. Templeton has shown that the African populations interbred with the Eurasian populations — thus, making love, not war. "The 'Out of Africa' replacement theory has always been a big controversy," Templeton...
  • Redating The Latest Neanderthals In Europe

    01/05/2006 3:34:12 PM PST · by blam · 8 replies · 1,208+ views
    Washington University-St Louis ^ | 1-5-2006 | Neil Schoenherr
    Redating of the latest Neandertals in Europe By Neil Schoenherr Jan. 5, 2006 Two Neantertal fossils excavated from Vindija Cave in Croatia in 1998, believed to be the last surviving Neandertals, may be 3,000-4,000 years older than originally thought. Erik Trinkaus An international team of researchers involving Erik Trinkaus, Ph.D., the Mary Tileston Hemenway Professor of Anthropology in Arts & Sciences; Tom Higham and Christopher Bronk Ramsey of the Oxford University radiocarbon laboratory; Ivor Karavanic of the University of Zagreb; and Fred Smith of Loyola University, has redated the two Neandertals from Vindija Cave, the results of which have...
  • New finds of human ancestor jumble evolutionary puzzle

    10/13/2005 8:12:50 AM PDT · by Crackingham · 167 replies · 2,914+ views
    Christian Science Monitor ^ | 10/13/5 | Peter N. Spotts
    In their study of the evolutionary ladder, scientists have found that modern humans rubbed elbows with some colorful cousins. But few have been as puzzling as a purported cousin unearthed on the Indonesian island of Flores. The partial skeleton, first reported last October, was stunning. Estimated to stand just over three feet tall, it offered the tantalizing possibility that a new species of mini-human lived 18,000 years ago. But some researchers dismissed the find as a pygmy or the result of a physical defect. Now the research team that gave the world the hobbit-like Homo floresiensis has found what it...
  • Gene That Determines Skin Color Is Discovered, Scientists Report

    12/16/2005 2:34:23 AM PST · by Pharmboy · 101 replies · 2,878+ views
    NY Times ^ | December 16, 2005 | NICHOLAS WADE
    A gene that is responsible for the pale skin of Europeans and the dark skin of Africans has been discovered by scientists at Pennsylvania State University. The gene comes in two versions, one of which is found in 99 percent of Europeans and the other in 93 to 100 percent of Africans, the researchers report in today's issue of Science. The gene is unusual because with most human genes, different versions are generally shared, though one version may be more common in one race than another. One exception is the Duffy null allele, a version of a gene that prevents...
  • Not Out Of Africa But Regional Continuity

    12/16/2005 11:03:02 AM PST · by blam · 28 replies · 5,700+ views
    Not Out of Africa but regional continuityA challenging idea about Human Evolution by Alan Thorne Mungo Lady Mungo Lady was delivered to Alan Thorne in a small cheap suitcase in 1968 when he was 28 years old. Her burned and shattered bones were embedded in six blocks of calcified sand. The field researchers who dug her up in a parched no-man's-land in southeastern Australia suspected that shewas tens of thousands of years old. 600 Bone Chips Almost every day for the next six months, he painstakingly freed her remains from the sand with a dental drill, prizing out more than...
  • Scientists Find A DNA Change That Accounts For White Skin

    12/15/2005 10:05:07 PM PST · by RWR8189 · 206 replies · 7,055+ views
    Washington Post ^ | December 16, 2005 | Rick Weiss
    Scientists said yesterday that they have discovered a tiny genetic mutation that largely explains the first appearance of white skin in humans tens of thousands of years ago, a finding that helps solve one of biology's most enduring mysteries and illuminates one of humanity's greatest sources of strife. The work suggests that the skin-whitening mutation occurred by chance in a single individual after the first human exodus from Africa, when all people were brown-skinned. That person's offspring apparently thrived as humans moved northward into what is now Europe, helping to give rise to the lightest of the world's races. Leaders...
  • Ancient drought 'changed history'

    12/08/2005 3:58:46 AM PST · by TigerLikesRooster · 42 replies · 1,607+ views
    BBC ^ | 12/07/05 | Roland Pease
    Ancient drought 'changed history' By Roland Pease BBC science unit, San Francisco The sediments are an archive of past climate conditions Scientists have identified a major climate crisis that struck Africa about 70,000 years ago and which may have changed the course of human history.The evidence comes from sediments drilled up from the beds of Lake Malawi and Tanganyika in East Africa, and from Lake Bosumtwi in Ghana. It shows equatorial Africa experienced a prolonged period of drought. It is possible, scientists say, this was the reason some of the first humans left Africa to populate the globe. Certainly,...
  • Kennewick Man, Meet Your Distant Cousins

    11/07/2005 3:24:22 PM PST · by blam · 60 replies · 5,718+ views
    Seattle Times ^ | 11-7-2005 | Kate Riley
    Kennewick Man, meet your distant cousins By Kate Riley Monday, November 7, 2005 - Page updated at 12:00 AM COLUMBIA, S.C. Discerning the story of America's prehistoric past is a bit like groping through an unfamiliar room in the dark. One learned scientist's tattooing tool is another's piece of rock. Ask them to agree how long it has been there and you're bound to set off an argument that makes Seattle's whether-to-monorail conflict seem like a tea party. So it goes with evolving thought in archaeology. We all know the prevailing theory. Our children's high-school textbooks talk about the...
  • Prehistoric skull found in dump may be missing common ancestor of apes & humans

    11/07/2005 8:35:20 AM PST · by dead · 186 replies · 3,155+ views
    The Guardian ^ | Monday November 7, 2005 | Dale Fuchs in Madrid
    Palaeontologists excavating a dump outside Barcelona have found a skull dating back 14m years that could belong to a common ancestor of apes and humans. The nearly intact skull, which has a flat face, jaw and teeth, may belong to a previously unknown species of great ape, said Salvador Moya, the chief palaeontologist on the dig. "We could find a cradle of humanity in the Mediterranean," he said. A routine land survey for a planned expansion of the Can Mata dump in Els Hostalets de Pierola turned up the first surprise in 2002: a primate's tooth. Since then, scientists from...
  • On Human Diversity: Why has the genetics community discarded so many phenotypes?

    10/25/2005 8:03:25 PM PDT · by Pharmboy · 61 replies · 1,777+ views
    The Scientist ^ | 10-24-05 | Armand M. Leroi
    HEAD CASES: The physical phenotypic differences between this Sudanese skull (right) and this European skull (left) are apparent. (From J.L.A. de Quatrefages, E.T. Hamy, Crania ethnica: les Cranes des races humaines, Baillere et fils: Paris, 1882.) Henry Flower became director of the British Museum of Natural History in 1884, and promptly set about rearranging exhibits. He set a display of human skulls to show their diversity of shape across the globe. A century later, the skulls had gone, and in their place was a large photograph of soccer fans standing in their terraces bearing the legend: "We are all...
  • More bones of hobbit-sized humans discovered

    10/11/2005 8:34:12 AM PDT · by aculeus · 89 replies · 2,871+ views
    Reuters ^ | October 11, 2005 | By Patricia Reaney
    LONDON (Reuters) - Australian scientists said on Tuesday they have discovered more remains of hobbit-sized humans which belong to a previously unknown species that lived at the end of the last Ice Age. Professor Mike Morwood, of the University of New England, in Armidale, Australia, stunned the science world last year when he and his team announced the discovery of 18,000-year-old remains of a new human species called Homo floresiensis. The partial skeleton discovered in a limestone cave on the remote Indonesian island of Flores in 2003 was of a tiny adult hominid, or early human, only one meter (3...
  • Anthropologists Uncover Ancient Jawbone

    10/11/2005 9:47:00 AM PDT · by NormsRevenge · 19 replies · 987+ views
    ap on Yahoo ^ | 10/11/05 | Joseph B. Verrengia - AP
    Scientists digging in a remote Indonesian cave have uncovered a jaw bone that they say adds more evidence that a tiny prehistoric Hobbit-like species once existed. The jaw is from the ninth individual believed to have lived as recently as 12,000 years ago. The bones are in a wet cave on the island of Flores in the eastern limb of the Indonesian archipelago, near Australia. The research team which reported the original sensational finding nearly a year ago strongly believes that the skeletons belong to a separate species of early human that shared Earth with modern humans far more recently...
  • 27,000 Year-Old Grave of Two Babies Found (Austria)

    09/24/2005 3:27:17 PM PDT · by blam · 75 replies · 2,536+ views
    Reuters - Fri Sep 23,11:08 AM ET A more than 27,000 year-old grave with the bodies of two babies is pictured near Krems in Lower Austria September 23, 2005. Archaeologists of the Prehistoric Commission of the Austrian Academy of Scienses (OeAW) excavated the bodies which were covered with an omoplate of a mammoth. This is the oldest grave ever found in Austria. REUTERS/HO/OeAW Praehistorische Kommission
  • Big chill killed off the Neanderthals

    09/21/2005 12:22:31 PM PDT · by george76 · 77 replies · 1,872+ views
    New Scientist ^ | 24 January 2004 | Douglas Palmer
    IT IS possibly the longest-running murder mystery of them all. What, or even who, killed humankind's nearest relatives, the Neanderthals who once roamed Europe before dying out almost 30,000 years ago? Suspects have ranged from the climate to humans themselves, and the mystery has deeply divided experts. Now 30 scientists have come together to publish the most definitive answer yet to this enigma. They say Neanderthals simply did not have the technological know-how to survive the increasingly harsh winters. And intriguingly, rather than being Neanderthal killers, the original human settlers of Europe almost suffered the same fate. Ice cores recovered...
  • Neanderthal Teeth Grew No Faster Than Comparable Modern Humans'

    09/19/2005 2:11:50 PM PDT · by DaveLoneRanger · 62 replies · 1,784+ views
    Ohio State Research ^ | Monday, September 19, 2005 | Staff
    (Embargoed until 5 p.m. ET, Monday, September 19, 2005, to coincide with publication in the online edition of the Proceedings of the National Academy of Sciences.) COLUMBUS , Ohio Recent research suggested that ancient Neanderthals might have had an accelerated childhood compared to that of modern humans but that seems flawed, based on a new assessment by researchers from Ohio State University and the University of Newcastle . They found that the rate of tooth growth present in the Neanderthal fossils they examined was comparable to that of three different populations of modern humans. And since the rate of...
  • The Roots Of Civilization Trace Back To ... Roots

    09/19/2005 3:25:13 PM PDT · by blam · 28 replies · 775+ views
    Eureka Alert ^ | 9-19-2005 | Mark Cassutt
    Contact: Mark Cassutt cassu003@umn.edu 612-624-8038 University of Minnesota The roots of civilization trace back to ... roots MINNEAPOLIS / ST. PAUL- About five to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar to rutabagas and turnips may have been one of the reasons. According to research by anthropologists Greg Laden of the University of Minnesota and Richard Wrangham of Harvard University, the presence of fleshy underground storage organs like roots and tubers must have sustained our ancestors who left the rain forest to colonize the savannah. They have published their research in...
  • Skulls Found in Africa and in Europe Challenge Theories of Human Origins

    08/11/2002 3:59:04 PM PDT · by vannrox · 466 replies · 1,359+ views
    NY Times ^ | August 6, 2002 | By JOHN NOBLE WILFORD
    August 6, 2002 Skulls Found in Africa and in Europe Challenge Theories of Human OriginsBy JOHN NOBLE WILFORD wo ancient skulls, one from central Africa and the other from the Black Sea republic of Georgia, have shaken the human family tree to its roots, sending scientists scrambling to see if their favorite theories are among the fallen fruit. Probably so, according to paleontologists, who may have to make major revisions in the human genealogy and rethink some of their ideas about the first migrations out of Africa by human relatives. Yet, despite all the confusion and uncertainty the skulls...
  • Mitochondrial DNA Mutation Rates

    09/01/2002 4:20:09 PM PDT · by Ahban · 155 replies · 1,013+ views
    Mitochondrial DNA Mutation Rates David A. Plaisted Recently an attempt was made to estimate the age of the human race using mitochondrial DNA. This material is inherited always from mother to children only. By measuring the difference in mitochondrial DNA among many individuals, the age of the common maternal ancestor of humanity was estimated at about 200,000 years. A problem is that rates of mutation are not known by direct measurement, and are often computed based on assumed evolutionary time scales. Thus all of these age estimates could be greatly in error. In fact, many different rates of mutation are...
  • Migrants Poured Into Britain After Ice Age

    10/26/2003 4:46:38 PM PST · by blam · 33 replies · 724+ views
    Scotsman.com ^ | 10-26-2003 | John von Radowitz
    Migrants Poured into Britain after Ice Age By John von Radowitz, Science Correspondent, PA News Britain experienced a tidal wave of immigration as soon as the last Ice Age ended, new data has shown. Previously it was thought that Britains repopulation was a slow process led by a few pioneering explorers. Researchers now know that humans responded rapidly to climate change and moved into Britain en masse as soon as the ice receded. Up to 20,000 years ago a huge ice sheet extended as far south as Norfolk. Then temperatures rose rapidly, producing warming weather than we have now. Once...