I thought this was obvious: avocado seeds are large because they were eaten by giant sloths. It would surely be much more difficult for an avocado tree to reproduce without the involvement of an animal, and giant sloths are not around anymore, so at some point humans must have taken over from the giant sloths, so there was probably some place where humans and giant sloths lived at the same time.
this post was submitted on 20 Dec 2024
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Makes sense. There is evidence that 21k years ago there were people in Argentina eating basically anything that moved
The Fediverse is old
For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like mastodons, saber-toothed cats and dire wolves that once roamed North and South America.
But new research from several sites is starting to suggest that people came to the Americas earlier — perhaps far earlier — than once thought. These findings hint at a remarkably different life for these early Americans, one in which they may have spent millennia sharing prehistoric savannas and wetlands with enormous beasts.
“There was this idea that humans arrived and killed everything off very quickly — what’s called ‘Pleistocene overkill,'” said Daniel Odess, an archaeologist at White Sands National Park in New Mexico. But new discoveries suggest that “humans were existing alongside these animals for at least 10,000 years, without making them go extinct.”
It’s true. There was a time before the Complete Fucking Assholes showed up.
dire wolves
Wait, dire wolves were real?
Always have been.
Sick
End boss, fucking unit.
Yes, and a few other fantastical-sounding creatures GRRM put in there, like Zorses.
I think I've seen the illustrations of zorses
And then the Republicans showed up, I assume
Well . . . yes
"Giant welfare sloths eating up all our fields of lavender!!"
Bro, coexisting with giant sloths and mastodons sounds pretty fucking cool not going to lie.
Giant sloths were terrifying. Built like a tank and had hands strong enough to claw through literal bedrock to make their caves.
Yeah but maybe I could make friends with one and he'd protect me and we'd go on adventures and solve mysteries
I wonder how long it took them to do so.
Why don’t we do that?
"Coexisted" with giant sloths and mastodons? Nah, now we've just got a better idea of what caused their extinction.
Except no. We lived with them for over 10,000 years without them going extinct. When before we thought they went extinct right after we arrived, thus concluded we hunted them to extinction.
But if we lived with them for thousands and thousands of years, that is very unlikely.
The original people of the Americas were not ancestors of the Native Americans Alice today so they either died off or left long before 13kya
And you know this how?
DNA evidence sorta points that direction, but it's complicated. There were likely waves of migration to North America from different groups. Most of the DNA in native people can be traced back about 13k years. The link in OP points to artifacts from 27k years ago.
However, there is some evidence of mixing with a different group.
Just as mysterious is the trace of Australasian ancestry in some ancient South Americans. Reich and others had previously seen hints of it in living people in the Brazilian Amazon. Now, Willerslev has provided more evidence: telltale DNA in one person from Lagoa Santa in Brazil, who lived 10,400 years ago. "How did it get there? We have no idea," says geneticist José Víctor Moreno-Mayar of the University of Copenhagen, first author of the Willerslev paper.
This is an area of active research where a lot of old models are being thrown out over the past few decades. The idea of a single migration from Siberia, the one most of us were taught at school, is definitely wrong. Timing of the glacier movement is too convenient, and the migration would have to have happened far too quickly. What to replace it with is still up in the air.
https://en.m.wikipedia.org/wiki/Luzia_Woman
Using DNA sequencing, the results showed that Luzia was genetically entirely Amerindian.
Is the article talking about this find?
Thank you for providing reasonable citations and adding to the discussion, you are appreciated
Who was Alice?
Alice? Who the fuck is Alice?
They were at least partially the ancestors of modern native people.
No DNA evidence of that is found in modern Native Americans
The phrase "peaceful coexistence" implies the existence of a darker, "violent coexistence."
Violent coexistence is what the Greeks and Turks currently have.
And dire wolves!
Every time there is new research into this topic, we learned that people have been in the Americas for far longer than we had thought. Pretty cool.
These artifacts from Santa Elina are roughly 27,000 years old — more than 10,000 years before scientists once thought that humans arrived in the Americas.
It still weirds me out thinking how mega fauna existed much more recently then we think. Like we could be chilling sloths, or, you know, running in fear, but now the largest animal I encounter on a regular basis is my neighbors fat cat.
When is the Netflix series please?
Not Netflix but pbs has a YouTube channel for shit like this called "eons". Pretty good ~10 min videos about paleontolgy, archeology, pre-history etc.
Stefan Milo on youtube is also a great channel on discussing these types of papers
There are already two seasons. It’s called “Ancient Apocalypse.”
I'm pretty sure there was some interbreding with the giant sloths as well
I see you, too, have met my cousin...
It's all relative in the Western hemisphere.