/sci/ - Science & Math

>>9751142

Neanderthals displayed the ancestral, non-D MPCH1 allele;

>http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0010648
>from Neanderthal individual from Mezzena Rockshelter (Monti Lessini, Italy)
>We show that a well-preserved Neanderthal fossil dated at approximately 50,000 years B.P., was homozygous for the ancestral, non-D, allele
>certainly shows that speculations on a possible Neanderthal origin of what is now the most common MCPH1 haplogroup are not supported by empirical evidence from ancient DNA

However, at 50kYBP, this neanderthal is post-African mtDNA contribution. Modern sub-Saharan Africans predominantly display the ancestral form of MCPH1;

>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635020/
>Instead, our data are consistent with a model of population subdivision followed by introgression to account for the origin of the D allele
>the lineage leading to modern humans was split from another Homo lineage, and the two lineages remained in reproductive isolation for ≈1,100,000 years
>At or sometime before ≈37,000 years ago, a (possibly rare) interbreeding event occurred between the two lineages, bringing a copy of the D allele into anatomically modern humans
>Furthermore, the worldwide frequency distribution of the D allele, exceptionally high outside of Africa but low in sub-Saharan Africa (29), suggests, but does not necessitate, admixture with an archaic Eurasian population

H. heidelbergensis emerged about 700kYBP, and the derived MCPH1 allele dates to 1250YBP. The human-neanderthal/denisovan split occured roughly 1000kYBP;

>https://www.ncbi.nlm.nih.gov/m/pubmed/20336068/
>It represents a hitherto unknown type of hominin mtDNA that shares a common ancestor with anatomically modern human and Neanderthal mtDNAs about 1.0 million years ago

A hypothesis can be presented; a proto-Denisovan emerged in Asia over 1250kYBP, who possessed the derived MCPH1 allele.

>>9751206

Which makes the following facts even stranger;

>https://en.wikipedia.org/wiki/Neanderthal_anatomy
>Long, gracile pelvic pubis (superior pubic ramus)

>https://www.sciencedirect.com/science/article/pii/S1726490116302532
>Minimum width of pubic superior ramus
>Men = 21.1-8.1mm
>Women = 19.3-7.1mm

The superior pubic ramus is wider in males than in neanderthals;

>https://onlinelibrary.wiley.com/doi/abs/10.1002/ajpa.1330730209
>This view also exposes an extremely
large subpubic angle (110degrees), even greater in this male specimen than in most modern fe-male pelvises
>The superior pubic ramus, as part of
the region, is, indeed, very long and slender
>As such, it is identical both in size and shape
of its cross section with other classical Nean-
derthals and markedly different from the
short stubby ramus seen in modern H sapi-
ens
>The un- usual sexual dimorphism in the Neanderthal ramus discussed by Rosenberg (1986b)(longer in the male than in the female

>>9751217

What this implies is that by two measures, the neanderthal pelvis was more feminine than a human pelvis.

On top of that, we have an inversion of a typical male-female pelvis measurement - male neanderthals had longer superior pubic rami than females. This means that the male neanderthal pelvis was more feminine by modern standards than the female neanderthal pelvis.

However, neanderthals had a less curved spine. In contrast, Denisovans and modern humans are ancestral in terms of hyperlordosis, whereas neanderthals were derived;

>http://m.pnas.org/content/suppl/2014/04/17/1405138111.DCSupplemental/pnas.1405138111.sapp.pdf
>Among the derived non-synonymous changes seen on the Neandertal lineage, but that are ancestral in Denisova and present-day humans, the only significantly enriched phenotypic term is “hyperlordosis

If neanderthals had a more feminine pelvis and inherited Denisovan mtDNA before African mtDNA replacement, we can suggest that Denisovans shared the neanderthal pelvis while also displaying a lordotic spine. This is justified, as the single Denisovan finger bone discovered was rounded like a neanderthal's.

This excess lordosis was the original state of the spine;

>https://www.researchgate.net/profile/Owen_Lovejoy/publication/51367381_The_natural_history_of_human_gait_and_posture_Part_1_Spine_and_pelvis/links/09e4150576bc55d3fe000000/The-natural-history-of-human-gait-and-posture-Part-1-Spine-and-pelvis.pdf
>The implications are quite profound. Since apes exhibit the opposite change of lumbar column reduction (Fig. 2), the demonstrably more lordotic column in Australopithecus than occurs even in most H. sapiens

Neanderthal admixture in modern humans could explain the loss of this extreme lordosis.

So are blacks inferior to whites or what? What's the point of this thread?

>>9751142
does that mean that neanderthal males prefered african females over their own?

>>9751309
Yes

>>9751309 I mean of course they are, nearly all races in Eurasia have looked down on the Negroid genus of ape and for good reason.

>>9751142
Also "Africans" as we know them today didn't exist 217,000 years ago. That was merely a common ancestor and or a completely different hominid species.

>>9754369
you are actually an idiot
you literally got banned posting your dumb images and you're going to get banned again

>>9754372 I've never used the term "nigger", and that image is within the realm of science other wise known as osteology.

>>9754380
so the ban reason was you said nigger?
kek

>>9754382 I guess, that and I posted derogatory pictures show casing the negroid's natural state of being.

/pol/'s obsession with Africans is almost uncanny. Like actual mental illness.

>>9755623
To be fair, the number of Africans in the world is growing exponentially.

>>9755658
we need super ebola + AIDS now

>>9754380
Wait, so Native Americans have a high average of 102? So the noble savage is real?

>>9755687
indians = pajeets

The idea that two functionally different species of humans existed at one point pretty much shoots a hole in evolution.

>>9755691
It says "US. Indians".

>>9755692
How?

>>9755692
the idea that 2000 functionally different species of birds exist pretty much shoots a hole in evolution.

The idea that inter-species breeding doesn't exist pretty much shoots a hole in evolution. What more guaranteed way does one species have to introduce new and beneficial features than to breed with a species that already has those features?

What if bestiality is only illegal cause there really isn't an arbitrary restriction on inter-species mating and the government doesn't want us to know about lizard people aka people who bred with lizards.

>>9754380
America belongs to Amerindians the same as europe belongs to europeans. Time to get replaced, subhuman.

>>9754380
>people in countries with functional education systems are better at making tests
:) wow man such great research

>>9754380
The IQ tests are dubious just like the tests to prevent black people from voting