https://nitter.1d4.us/Unashamed366/status/1627542776194777088
Human beings
Hundreds of millions of years
:bugs-no:
The most recent common ancestor for humanity has been estimated at 1400 BC, and the point where we have no uncommon ancestors at 5300 BC. The only exceptions would be tiny populations of fully isolated peoples such as the North Sentinelese Islanders.
I thought we left Africa around 70k years ago at the latest due to the Toba explosion?
yes, but the fundamental insight here is that human populations didn't stay separate. the human family tree loops back on itself continually, and even if we can identify a point of relative density and homogeneity from which those populations originated, there was still a point later when the species was spread throughout the globe and from which we nevertheless share the same ancestors.
What does uncommon ancestor mean here? In 5300 BC there were no individuals that some modern humans but not all modern humans descend from?
yes, in the article they refer to it as the identical ancestors (IA) point. to be clear this is based on a mathematical model. they go into some of the limitations of it near the end.
Pre-historic humans were split into different sub-species but they all died out or we crossbred with them. The last living species of human other than us were the neanderthals.
i'm always amazed at how widespread ancient humans were too. It's a complete myth that humans evolved in separate environments, because ancient humans were everywhere and constantly moving. Homo erectus was from where Indonesia is now. Humanity went back to Africa multiple times, which is where we finally evolved into modern homo sapiens. There were incredibly long trade routes going from northeast europe all the way to southeast asia. Neanderthals had some kind of burial religion that was practiced all the way from Spain to central Russia.
Homos do be listing to, I'm Gonna Be (500 Miles) by The Proclaimers
[Verse 1]
When I wake up, well, I know I'm gonna be
I'm gonna be the one who watches out for predators for you
When I go out, yeah, I know I'm gonna be
I'm gonna be the one who brings back all the food
If I get drunk, well, I know I'm gonna be
I'm gonna be the first the who figured out it was fermented fruit
And if I haver, yeah, I know I'm gonna be
I'm gonna be the one who's haverin' about my fire making skills.
:lets-fucking-go: and I would WALK five HUNdred MILES
Idr what variant it was but apparently the most recent one was actually the version that lived in caves in China, and it was almost close enough in the timeline for written history. Low-key wish it was though I want those deets
:very-smart: the last population of the very largest species of elephant supposedly dwelled in northern China too, till a bit after written history & representative art. motherfuckers were living in a goddamn fantasy land
Young earth creationist theories from religious nuts do be like that
Everything she’s saying in this video is stupid af on its face but I also can’t stand the smug delivery that’s been cultivated on tiktok in general. Like 80% of the videos of someone just talking in the camera has this same smug condescending tone and 90% of the time it’s “source: I made it up” level discourse about inane shit presented as objective fact. The two together make this insufferable lol
They lie all the time, so should we. It's not like anyone believes us when we tell the truth anyways.
If they think they've cracked the code, by all means, write up that breakthrough, earth-shaking biology research paper where they somehow prove that pigmentation alone is a prevailing indicator of homo sapiens subspecies. If it's so obvious some dipshit on tiktok can babble about it, there shouldn't be any difficulty getting into a scientific publication, right? Go on, big guy, stake your public image and reputation on it, put yourself under the scrutiny of people whose entire life is dedicated to these things. Do it, ignore all sociological considerations and actual genetic research. Do some Romantic-era vibes-based pattern recognition and start citing haplo groups.
I'm sure they'll own those liberal biologists with facts and logic.
They think the scientific community is a conspiracy to keep true race facts from being published, so they don't have to stand up to scientific scrutiny.
Seperately? Didn't we kill and interbreed with Neanderthals and shit?
Also didn't humans only leave Africa less than 100 000 years ago? And our genome is no where as flexible as other animals, if you want to put it that way.
Modern humans left Africa something like 100,000 years ago, but predecessor species like Homo heidelbergensis (found in Spain) and Homo erectus (found in Indonesia) had left Africa hundreds of thousands of years before that. One of the things that broke my brain in college was realizing all the human off-shoot species also had boats and had already gone across nearly the whole world before modern humans showed up.
I thought the Americas, Australia, most of the Pacific, and far northern Eurasia were all only reached by homo sapiens. Is there evidence of other humans species going to those places?
Also didn’t humans only leave Africa less than 100 000 years ago?
The Homo genus proliferated around the world several times over, with different species and subspecies of humanoid dating back tens of millions of years.
Homo Erectus - the progenitors of modern Homo Sapeins Sapeins, and a number of other close relatives - demonstrate a fossil record as far away as the Philippines. The "Flores Man" was a genuine subspecies living out on the island of Flores, Indonesia until extinction around 50,000 years ago.
Africa happened to be a font of human and near-human relations. It served as a veritable Garden of Eden for genetic diversification. But humanity and its off-shoots were not confined there over its millions of years of evolution.
The human genome is incredibly homogeneous when the widespread distribution throughout the world is considered. This is due to a fairly severe genetic bottleneck at the last ice age as well as the fact that we are constantly moving about and fucking everything that moves.
I had a professor once who said that if aliens came to earth and examined humans they would think we all originated from a population of clones because we are all so alike, I don't know how true that is, but I like the anecdote.
