posted on Aug, 17 2012 @ 07:13 AM
reply to post by demongoat
Originally posted by demongoat
the thing is, they haven't found any evidence of any mitochondrial dna from neanderthals, which is passed maternally, in homo sapiens so that claim
you are making is dead in the water.
this means that humans would have to only be male, and if we never mated with neanderthals(a huge possibility) it hardly matters if a hybrid was
viable or not.
we may have been split off so long that we wouldn't mate with neanderthals anyway, or so rarely that even if we could we didn't and didn't produce a
here is a report on it from 2007.
The article you reference made no mention of mitochondrial DNA, and a quick Google search did not turn up anything along those lines either. The
article in fact only discusses morphological features of one particular skull found in Romania and makes no mention of DNA at all.
The best I found was this
from two days ago which is well referenced and though not at all supportive of hybridization is still littered with phrases such as
Scientists at Cambridge University currently are saying that humans from Europe, Asia and Oceana may not have mixed with Neanderthals…..
Studies in the past reported that only non-Africans had Neanderthal genes, namely Europeans and Asians. Then came studies showing Denisovans in Asia,
a cousin to Neanderthals, but different from Neanderthals showed up in some Asian peoples today, including those in Oceana, such as in Papua and New
Guinea in one to six percentage of their genomes. So research must continue.
The question remains whether they interbred or not.
But now the new study conflicts and says there's no proof they mated. Instead, they may have simply had the same common ancestor from further back in
time, about 300,000 years ago.
Science can't prove conclusively that humans and Neanderthals didn't breed. But researchers say it would have been much less than what last year's
research reports claimed, that one to four percentage of Neanderthal genes in non-Africans..
This certainly does not suggest a solid case for no hybridization at all.
Now assuming you are correct about your assertions of mitochondrial DNA (which I cannot find any support for), one would assume that if a human male
mated with a Neanderthal female that female would continue to live with her Neanderthal tribe which as we all know has become extinct. If a
Neanderthal male mated with a human female chances are that female would still continue to live with other humans and therefore no mitochondrial DNA
would have been passed on through her offsping.
This does not at all leave my claims ‘dead in the water’, and in fact to introduce mitochondrial DNA into the greater human population would
introduce another layer of complexity (female hybrid mating with human male and having a female child) which although may well have happened but
probably not at a scale large enough to have seriously impacted the greater human genome.
I have not claimed that Neanderthal/Human breeding ever happened on a large scale, or that this is the sole cause of Neanderthal extinction. As I said
in my original post in this thread
I think the trouble with explanations such as this is that they often seem to assume it has to be one way or another, when chances are the real
truth probably lies somewhere in the middle.
Keep in mind also that the Neanderthal population was pretty small (prob. Max 10,000 at any one time) and would have likely existed in sparse groups
across Europe. It would have been fairly brutal existence and I have no doubt that in most Human/Neanderthal meetings the result would have likely
been quite violent. This would have meant a lot of death but also a lot of rape…
i hope you do realize that while we can combine animals to make hybrids, such as mules, and ligers, they don't happen naturally. i figure it
is the same with humans and neanderthals,
They do if one isolated population invades the territory of another and they are similar enough in form and habit to actually mate in the first
the thought is that neanderthal were highly adapted to colder climates and as the climate got warmer the neanderthal migrated north to keep to
that climate. that is why there is no DNA found in south african people, because when humans evolved the neanderthal lived in the colder regions
also neanderthal hunting tactics didn't work in grasslands and many of the animals they hunted didn't live there either.
This only suggests Neanderthals did not ever return to Africa, but does not at all explain there is absolutely no Neanderthal DNA (from the
‘geographically isolated human tribe’ from which Neanderthals branched off as mentioned in the OP) left in native Africans at all.
edit on 17/8/2012 by 1littlewolf because: (no reason given)