ladylinda
Moderatorz 
Poetry Editor
July 2011 Member of the Month, May 2014 Member of the Month
Posts: 4,901
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Post by ladylinda on Jul 11, 2018 16:22:12 GMT -5
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Jessiealan
xr
Member of the Month, October 2013
Posts: 8,726 
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Post by Jessiealan on Jul 11, 2018 18:59:15 GMT -5
Thank you for posting this, Linda. I enjoyed reading it. Very interesting. |
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Post by fretslider on Jul 12, 2018 3:53:02 GMT -5
There always was a suspiciously political angle to the OOA hypothesis. An attempt to make us all the same. If we all came out of Africa, you could argue that the brightest left the continent and left the numpties and their mud huts behind. Ouch. They rely on genomics to attempt to tie all humans to a single migration event.[1] The flaw in that argument is that fact that we are genomically very close to other species too; like the Bonobo and the Chimpanzee. This theory is still being advanced despite evidence to the contrary dating back to 2007 [2] "Teeth are the best genetic marker that we have in the fossil record itself," Trinkaus says, because "they are as close as we can get to a reflection of the individual's genetic makeup." The reason: Tooth crowns are genetically determined—and thus reflect an individual's genotype—and are not affected by environmental stress during development.
Scientists found that teeth from African specimens were a different shape or morphology than those from Eurasian samples. The researchers wrote that teeth toward the front of the mouth from Eurasians had more "morphological robusticity," such as a triangular, shovel shape. Their back teeth were smaller and had smoother chewing surfaces; the rear teeth from African samples were larger and the chewing surfaces on them more pointy and jagged.
"The continuity of the 'Eurasian dental pattern' from the early Pleistocene until the appearance of upper Pleistocene Neandertals suggests that the evolutionary courses of the Eurasian and the African continents were relatively independent for a long period and that the impact of Asia in the colonization of Europe was stronger than that of Africa,"This latest piece in the Guardian - famous for publishing conclusions from papers that haven't even been peer reviewed - is a rejig for OOA. Instead, the international team argue, the distinctive features that make us human emerged mosaic-like across different populations spanning the entire African continent. [3] So what about the fossil evidence? Hmm a team of prominent scientists is now calling for a rewriting of this traditional narrative, based on a comprehensive survey of fossil, archaeological and genetic evidence. [3] It seems they're fully post-modern scientists who are determined to ignore inconvenient evidence. 1 www.sciencemag.org/news/2016/09/almost-all-living-people-outside-africa-trace-back-single-migration-more-50000-years 2 www.scientificamerican.com/article/is-the-out-of-africa-theory-out/3 www.theguardian.com/science/2018/jul/11/no-single-birthplace-of-mankind-say-scientists |
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Post by mouse on Jul 12, 2018 5:21:09 GMT -5
"""This latest piece in the Guardian - famous for publishing conclusions from papers that haven't even been peer reviewed - is a rejig for OOA.""  poor Lucy all that childbearing and trekking must have been bad for her back...  |
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toby1
Craftsman
Supplier of White Flags to the French Army.
Posts: 1,987
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Post by toby1 on Jul 24, 2018 8:46:02 GMT -5
I don't trust anything the Guardian publishes because they have a specific agenda and they are very selective in what they publish.
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Alpha 
