Posted on 04/21/2021 10:10:41 AM PDT by SunkenCiv
To extract ancient human chromosomal DNA from caves, Vernot and colleagues identified regions in chromosomes rich in mutations specific to hominids to help the team filter out nonhuman DNA. This helped the researchers successfully analyze Neandertal chromosomal DNA from more than 150 samples of sediment roughly 50,000 to 200,000 years old from a cave in Spain and two caves in Siberia.
After the team compared its data with DNA previously collected from Neandertal fossils of about the same age, the findings suggested that all these Neandertals were split into two genetically distinct waves that both dispersed across Eurasia. One emerged about 135,000 years ago, while the other arose roughly 105,000 years ago, with one branch of the earlier wave giving rise to all the later groups examined.
In the Spanish cave, the researchers found genetic evidence of both groups, with the later wave apparently replacing the earlier one. “There were signs based on the mitochondrial DNA of this turnover, but seeing it clearly with the nuclear DNA is really exciting,” says paleogeneticist Qiaomei Fu at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, who did not take part in this study.
The later wave may be linked with the emergence of the last “classic” stage of Neandertal anatomy, skeletal features such as a bulge at the back of the skull that may indicate strong neck muscles or enlarged brain regions linked to vision, the researchers say. This later wave may have coincided with cooling and other environmental changes that came with the advent of the last ice age, they note.
(Excerpt) Read more at sciencenews.org ...
The original White Flight.
This is why you have to close the toilet lid after you go to the bathroom.
A thousand years from now, some guy will be tracing you urine droplets and figuring out that you were drinking at work.
Actually I think the steam engine preceded internal combustion engine.
So, why the spelling change? It does change the pronunciation of the word.
I went to West Germany years ago. Biught some Rosenthal china. They pronounced it “RosenTALL.” Silent “H.”
The reason why neanderthals generally lost out to African humans is that neanderthals lived in isolated communities while African humans interacted. The interaction caused viral epidemics which shortened lives. The arrangement inoculated African humans against the viruses. The shortened lifespans of African humans hastened evolutionary advances.
#18 Democrat like politicians were in the way of progress.
I guess without guns, without anti-biotics, without decent shelters, without agriculture, they were simply busy surviving lions, lack of reliable food supply, covid-18 (lol), the ice age etc.
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Would you sit around some cave camp fire, shivering in the dark for 290 thousand years or would you have gotten off your frozen butt and done something about it?
Remember, if humans disappeared today, our ‘civilization’ would be dust, sky scrappers and all in 10,000 years. In 50,000 years, the dust would have been recycled many times. Then add in a world wide ice age scrapping off whatever remained, then the ice melting and drowning the very place where most people live - the costs and rivers - under hundreds of feet of mud and sediment.
It only takes 6000 years at most for a civilization to arise. Then, if every one failed and collapsed at 6,000 years, they would be gone after another 10,000 years passed. So that’s 16000 years. 293,000,000 / 16000 = 17 civilizations arose and gone before ours being the 18th.
just think about it before piling on.
Not at all. Neandertal is in everyone’s DNA, including modern Africans. They are your and my ancestors.
Some DNA studies have placed Neanderthal contribution to modern human DNA at about 3 percent. That’s why I said that Neanderthals “generally” lost out to African humans. I’m sure though, that percentage would differ by region.
There’s more Neandertal in there than in 18 of your great-great-great-great-grandparents’.
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