Why are Blacks more similar to apes than Whites are? -- LiveWire Teen Forums

GENETICS
The Nigerian-Chimp genetic distance using Nei's method is 1.334, 72% of the White(German) distance of 1.865
Using Cavalli-Sforza's method the Black distance is 0.539, or 79% of the White distance of 0.680.

So Blacks are pretty much only 3/4 as genetically distant from Chimps as Whites are - very significant!
Source:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1801145/?page=7

The ASPM and MCPH1 genes are found in Whites and Asians but not Blacks and apes, and have been shown to correspond to the evolution of brain morphology and intellectual advancement. Their evolution and selection has been shown to correspond to the birth of civilization which was completely and utterly absent in all of Black Africa.

More info on ASPM and MCPH1:
http://hmg.oxfordjournals.org/content/13/5/489.abstract
http://www.sciencemag.org/content/309/5741/1717.abstract
http://www.sciencemag.org/content/309/5741/1720.abstract

PHYSICAL TRAITS
The Negroid race has an across-the-board higher rate of primitive traits compared to Whites. Blacks have:
- more robust cranial bones
- simpler cranial sutures
- a higher rate of unclosed sutures
- a lower cephalic index
- a higher rate of saggital keel
- more post-orbital constriction
- a more sloped forehead
- more rectangular eye sockets
- a wider nasal index
- less nasal prominence
- a higher rate of joined nasal bones
- a higher rate of subnasal prognathism
- a lower facial angle
- the presence of the "Simian shelf"
- a more rectangular palate
- larger and wider-apart teeth
- less spinal curvature
- shorter spinal length
- a lower sacral index
- longer arms and legs.

One can undeniably attribute the vast majority of these traits more strongly to chimpanzees, gorillas, homo erectus, and archaic homo sapiens compared to modern anatomical humans, hence justifying the label "Primitive."

ARCHAIC ADMIXTURE
A few studies have shown this. A press release on a study by famous anthropologist Hammer:

Hammer said that even though the archaic DNA sequences account for only two or three percent of what is found in modern humans, that doesn't mean the interbreeding wasn't more extensive. [...]
"We think there were probably thousands of interbreeding events," Hammer said. "It happened relatively extensively and regularly."

http://www.eurekalert.org/pub_releases/2011-09/uoa-ahw090211.php

From the paper:

Interestingly, the Mbuti represent the only population in our survey that carries the introgressive variant at all three candidate loci... this suggests that central Africa may have been the homeland of a nowextinct archaic form that hybridized with modern humans.
[...]
The emerging geographic pattern of unusual variants discovered here suggests that one such introgression event may have taken place in central Africa... recent studies attest to the existence of Late Stone Age human remains with archaic features in Nigeria (Iwo Eleru) and the Democratic Republic of Congo (Ishango) (30-32). The observation that populations from many parts of the world, including Africa, show evidence of introgression of archaic variants (6, 16, 19) suggests that genetic exchange between morphologically divergent forms may be a common feature of human evolution.

http://www.pnas.org/content/early/2011/08/29/1109300108.abstract

From another study on ancient African remains:

Thus our restudy of the [African] Iwo Eleru cranium confirms previously noted archaic cranial shape aspects, and the U-series age estimates on its skeleton support the previously proposed terminal Pleistocene date for this burial. Our findings also support suggestions of deep population substructure in Africa and a complex evolutionary process for the origin of modern humans... Later Stone Age fossils from at least two regions of Africa retain significant archaic aspects in their skeletons.
[...]
Our findings are in accordance with suggestions of deep population substructure in Africa and a complex evolutionary process for the origin of modern humans. They further highlight the dearth of hominin finds from West Africa, and underscore our real lack of knowledge of human evolution in that region.

http://www.plosone.org/article/info:doi/10.1371/journal.pone.0024024

I feel that this has a lot to do with Blacks having more archaic/primitive humanoid admixture, but what is your opinion's livewire?
More info here: http://golivewire.com/forums/peer-ebaobso-support-a.html

Why do you believe that Blacks more similar to apes?
(Please don't fill this thread with racist garbage)

Post edited at 5:07 pm on July 26, 2012 by kidd rune

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