/sci/ - Science & Math

[Anonymous No.16134487]

what were ppl doing living in siberia 24,000 years ago during the middle of an ice age? shouldn't it have been covered with glaciers a mile thick?

[Anonymous No.16134960]

>>16134487
No. Do you not know anything about climate or weather? Latitude is only one small factor in determining climate. For instance, much of Western Europe and the West Coast of the US has significantly warmer winters than the east coast of the US. Somewhere like Washington State, British Columbia Canada, or the UK, is warmer than the state of Viriginia in winter, even though they're much further north. Continental climates tend to face much more weather extremes. Much of the midwest and central asia has extremely hot summers and frigid winters. Afghanistan is literally colder than Vancouver Canada in the winter. Ocean currents and so-called prevailing winds have just as much of an impact on climate as does latitude. A change in ocean currents or prevailing winds can therefore have major long term impacts on regional climate patterns.

As for the last ice age, much of North America was covered by the Laurentide ice sheet and much of Europe by the Fennoscandian ice sheet, along with permafrost stretching throughout most of the continent. At this time sea levels were completely different and the Berring straight would have been mostly dry land, which entailed a completely different pattern of ocean currents and prevailing, both globally, but especially with the region today encapsulating Siberia, the Russian far east, Alaska, and the west coast of Canada and the US. The resulting in completely different weather patterns in the region. Siberia and the Russian far east, and the entire Bearing straight region were a lush, relatively warm areas that received significantly more rainfall than in modern times (much of Siberia and the eastern portions of the Eurasian steppe is actually relatively dry or even semi-arid, receiving like 10-25 inches of rain a year, which is comparable to a lot of Northern California).

[Anonymous No.16134963]

>>16134487
>>16134960
Actually, at the time parts of Siberia functioned as a sort of refugia for the human and neanderthal populations in the region. For instance, the Mal'ta Buret culture was native to ice age Siberia, and they appear to be have been a very developed and sophisticate culture complex in the region, that appears to have left genetic traces on many of the contemporary populations of Eurasia (e.g. Finno-ugrics, Turks, Indo-Europeans, Native Americans etc.) They lived in the area roughly 20,000 years ago. They made venus vigurines and possibly totem pole-like idols (e.g. the shigir idol), and they may have been the same population which geneticists today call the Ancient North Eurasians.

[Anonymous No.16135259]

>>16134963
interadasting

[Anonymous No.16136431]

>>16134487
This is more evidence that disproves the out of africa theory. There is no way that people evolved to be living in the far north during an ice age in only a few years after the "out of africa" meme was supposed to have taken place

[Anonymous No.16137086]

>>16136431
Out of Africa is definitely wrong.

[Anonymous No.16137470]

>>16136431
I thought humans went out of Africa well before 24,000 ya. More like 50,000 - 60,000.

[Anonymous No.16137669]

>>16136431
Even mainstream scholars are basically saying as much at this point. They're not quite saying that out of africa is complete bullshit, but they're basically saying it needs significant revisions, and that the timeline needs to be pushed back signficiantly. The out of africa model basically says that modern homo sapiens sapiens came out of Africa in their present state only 50,000 years ago, and that we did not interbreed with neanderthals or denisovans. Now it looks like we could push that number back at least a few hundred thousand years, and we can probably say that homo eretcus and neanderthals left Africa much earlier, and spread across much of Eurasia, Australasia, and the Indo-pacific. These populations contined to diversify and evolve, while also maintain weak genetic and culture leink with other hominid populations throughout south asia and africa.

If it can still be said that humans come from africa, it's more like hominids came from africa, but modern humans really emerged out of a complex, interacting group of different mhominid subpopulations that spanned much of Africa and Eurasia. Hominids had already long been exploring the world outside of africa by the time modern homo sapiens really established a foothold. In particular, hominid populations in south and central asia also played an important role in the development of modern human lineages. Also, some mainstream geneticists and evolutionary anthropologists are reconsidering the taxonomical relationships between neanderthals, humans, and denisovans, since historically neanderthals were though of a primite ape like creatures that certainly didn't think or act like modern humans, or interbreed with them in large numbers. Of course, it turns out this is incorrect, and they were quite intelligent and sophisticated and did interbreed with modern humans. Ironically, BOTH civnat neocon christcucks and woke neolib humanities types have sperging out about this type of research (pdf related).

[Anonymous No.16138525]

>>16137470
>humans evolved multiple different haplogroups in the first 25,000 years after leaving africa and then evolution just shut down after that
>the evolutionary process moved at massively accelerated rate for 25,000 years and then stopped on a dime for no apparent reason.
25,000 years is an extremely short period of time
>humans evolved a zillion advantageous adaptions for the local climates and ecosystem in 25,000 years after leaving africa and the just stopped cold
meanwhile it took whales 15 million years to stop growing legs

[Anonymous No.16139533]

>>16138525
The evolution story is full of plot holes because the story is all made up to be designed around a political narrative that support the official UN narrative that "there is only one human race" which is plainly false