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November 13, 2019, 3:07 am UTC    
October 17, 2018 04:26PM
Jammer Wrote:
-------------------------------------------------------
> Think about it Lee...
>
> You've got more Neanderthal DNA in you than

...chimps. And none of it has anything at all to do with mental capacity.

[www.delhidailynews.com]

And just think:

[biorxiv.org]
However, using previously published estimates of inbreeding in Neanderthals, and of the distribution of fitness effects from human protein coding genes, we show that the average Neanderthal would have had at least 40% lower fitness than the average human due to higher levels of inbreeding and an increased mutational load, regardless of the dominance coefficients of new mutations.

[www.evoanth.net]
"However, FOXP2 isn’t the only gene linked to language. CNTNAP2 is linked to language development in children, whilst ASPM and MHC1 are associated with being able to pick out different tones. And these 3 other genes are absent from Neanderthals6! On balance it would seem that the genetic evidence does not support the idea that Neanderthals had fully modern linguistic capability."
6 references given at bottom of article

[www.huffingtonpost.com]
"Four years after scientists discovered that the two species' genomes differ by a fraction of a percent, geneticists said on Thursday they have an explanation: the cellular equivalent of "on"/"off" switches that determine whether DNA is activated or not."
original reference:

[theconversation.com]
"In other words, natural selection would have largely weeded out the Neanderthal-human crosses because their mixed-up genomes led to a reduction in survival and reproductive success. Hybrids were selected against!"

[www.smithsonianmag.com]
"Neanderthal brains had more capacity devoted to vision and body control, with less left over for social interactions and complex cognition"

[fire.pppl.gov]
"An additional criterion is whether a “cultural pattern” can be detected, says team member
Shannon McPherron, an archaeologist at the Max Planck Institute for Evolutionary
Anthropology in Leipzig, Germany. Prehistoric modern human burials, particularly those more recent than the time of the Neandertals, routinely include beads and red ochre, but “there is no patterning in this [Neandertal] stuff,” McPherron says."

[onlinelibrary.wiley.com]
Iodine is essential for modern humans and may have
been essential for Neandertals as well. Today about 30 percent of the world's
population is at risk of iodine deficiency disorders , 750 million people suffer from goiter, 43 million have
-related brain damage and mental
retardation, and 5.7 million are afflicted by cretinism, the most severe form of
Distinctive Neandertal skeletal
traits are identical to those of modern humans who suffer from cretinism.
Cro-Magnon Venus figurines also exhibit distinctive traits associated with
cretinism among modern humans. This new evidence, coupled with recent
mitochondrial findings, suggests
that a single genetic alteration, which improved the ability of the thyroid
gland to extract and utilize iodine, may account for differences between
Neandertals and modern humans. Late Pleistocene human evolution, consequently,
may be explained by several alternative interpretations involving iodine
pathology and/or biological adaptation. Speciation may have resulted from the
geographical isolation of inland populations.

[genographic.nationalgeographic.com]
"By comparing the genomes of apes, Denisovans, Neanderthals, and modern humans, scientists hope to identify DNA segments unique to the different groups. Early results already suggest modern humans underwent genetic changes involved with brain function and nervous system development, including ones involved in language development, after splitting from Neanderthals and Denisovans. Identifying and understanding these genetic tweaks could help explain why our species survived and thrived while our close relatives died out."

[www.linkedin.com]
"Gene deserts were found at loci of fundamental importance to humans. Regions of very low introgression are found at the loci of the FOX-P2 gene (S.Sankararaman Et al 2014). This protein is vital in speech, language and motor co-ordination (S.E. Fisher Et al 2001). The importance of the gene product in speech development and motor co-ordination makes it fairly easy to understand how introgression into these areas would not be maintained by natural selection."

[www.smithsonianmag.com]
Subject Author Posted

"Ghost" hominin

Hans October 14, 2018 11:03PM

Re: "Ghost" hominin

Khazar-khum October 15, 2018 02:50PM

Re: "Ghost" hominin

Lee Olsen October 17, 2018 09:31AM

Re: "Ghost" brains

Lee Olsen October 16, 2018 08:00AM

Re: "Ghost" brains

Roxana Cooper October 16, 2018 05:33PM

Re: "Ghost" brains

Lee Olsen October 17, 2018 05:00PM

Re: "Ghost" brains

Roxana Cooper October 18, 2018 01:11PM

Re: "Ghost" brains

Khazar-khum October 18, 2018 05:31PM

Re: "Ghost" brains

Lee Olsen October 19, 2018 03:23PM

Re: "Ghost" hominin

Rick Baudé October 16, 2018 03:04PM

Re: "Ghost" hominin

Lee Olsen October 17, 2018 03:56PM

Re: "Ghost" hominin

Jammer October 17, 2018 04:08PM

Re: "Ghost" hominin

Lee Olsen October 17, 2018 04:26PM

Re: "Ghost" hominin

Khazar-khum October 18, 2018 05:38PM

Re: "Ghost" hominin

Lee Olsen October 19, 2018 03:55PM

Re: "Ghost" hominin

Khazar-khum October 23, 2018 04:02PM

Re: "Ghost" hominin

Lee Olsen October 25, 2018 07:17AM

Re: "Ghost" hominin

Lee Olsen October 19, 2018 05:45PM



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