Deep genetic affinity between coastal Pacific and Amazonian natives • Hacker News Board

Re: Deep genetic affinity between coastal Pacific and Amazonian natives

#31

Post by tempforanthro » Sat, Apr 10, 2021, 2:58 AM UTC

AlotOfReading wrote: post #19

amvalo wrote: post #16

Earlier quoted context omitted.

> some other N. American immigration hypotheses (eg, that pleistocene peoples could make boats)]. Why were they so opposed to this? You can't leave us hanging... EDIT: ok and why is this at -1??

There was a debate back in the 80s/90s about how the "beringia standstill population" got into the Americas south of the ice walls. It became a bit of a pressing issue once Monte Verde was accepted as unambiguous evidence of the pre-clovis hypothesis. There were basically two main, competing theories to explain it: 1) the "ice-free corridor" / inland route, where people simply walked from Alaska to the continental US…

Nicely summarized.

Re: Deep genetic affinity between coastal Pacific and Amazonian natives

#32

Post by tempforanthro » Sat, Apr 10, 2021, 3:01 AM UTC

eridan2 wrote: post #22

tempforanthro wrote: post #11

Earlier quoted context omitted.

No worries, though I did not mention Polynesians. This is not the venue to parse out what Australasian means, but, at least genetically, we would be discussing a much older population. It is by definition about seafaring people, however, as the only accepted migration path to the americas has been over the bering straights. edit: oops. now i see where you are coming from. Mea culpa. see comment re Pleistocene boats.…

not necessarily seafaring people; the migration was over land, possible due to the lowering of sea level during the Last Glacial Maximum

afaik, or can even imagine, there were no land routes across the Pacific at even glacial maximum.

If you know different, tell.

Re: Deep genetic affinity between coastal Pacific and Amazonian natives

#33

Post by fit2rule » Sat, Apr 10, 2021, 12:06 PM UTC

stevelawrence wrote: post #23

tempforanthro wrote: post #14

Earlier quoted context omitted.

In this case it really is just a genetic grouping. Refers to the understood native population of, roughly, Australia--there is some overlap nearby. The subject of human migration as revealed by genetics is super interesting: really puts into perspective how small we are, story wise, and to my mind, lends a sense of gratitude to the almost unimaginable hardships and victories that got us to where we are now, typing wo…

> Refers to the understood native population of, roughly, Australia Does this mean aboriginal Australians, Papuan type people? I had not realized that they had also reached South America. I am fascinated by that population set as it seems to have a deep culture of exploration "walkabout", "dreamtime" concepts. It is a shame so little is known about their adventures and history.

There is ongoing research into whether there was contact between the builders of Gabarnmung and Gobekli Tepe - you should check in on that, if you're interested. It could radically rewrite what we think we know about human history in the region ..