ETA: Today I learned I had a much much larger gap in knowledge than I thought I did. Thanks to everyone for the information and links!
Even this evidence of woodworking is largely unremarkable. We’ve got phytolith [1] and microwear [2] studies showing unambiguous evidence of woodworking going back at least 1.5 million years. Wood tools just don’t survive very long, so this find is most notable for its preservation.
[1] https://www.sciencedirect.com/science/article/abs/pii/S00472...
[2] https://www.sciencedirect.com/science/article/abs/pii/S00472...
Then around 2-2.5 million years ago you get the first homo species in the genus homo such as Homo habilis and they created the Oldowan tool culture.
Both Australopithecus afarensis and Homo habilis are our ancestors -- however they are also the ancestors of other homo lines that diverged from us that we are not descendents of (which are now extinct).
People often forget how widespread and varied the Homo genus was before all our cousin species went extinct (likely in part due to us).[1] Homo erectus colonized the entire old world very effectively 1.5 million years ago!
[1] https://en.wikipedia.org/wiki/Homo#/media/File:The_hominin_f...
Also, more than primates use tools: Many corvids (crows, ravens, etc.) do, as do other animals. Look up New Caledonian Crows in particular.
But don't take all this from HN commenters debating each other; find some authoritative sources. A recent review article in a scientific journal would be a great start. Google Scholar lets you search for review articles.
>Flexible use of a multi-purpose tool by a cow
https://www.cell.com/current-biology/fulltext/S0960-9822(25)...
In terms of tools by homonins, there is a roughly ~3million year history of stone tool use by various species, and the main thing preventing that date from being pushed further back is the difficulty in discerning between stones that have been shaped intentionally and those shaped by natural forces.
We have both observational and archaeological evidence of tool use in chimpanzees, macaques, and capuchins so it’s a pretty widespread behavior. I think the archaeological evidence for monkeys only goes back about four thousand years but thats because we havent studied the issue as much in archaeology.
I think we see shades of this today. Bearded Capuchin monkeys chain a complex series of tasks and use tools to break nuts. From a brief documentary clip I saw [0], they first take the nut and strip away the outer layer of skin, leave it dry out in the sun for a week, then find a large soft-ish rock as the anvil with a heavier smaller rock to break open the nut. So they had to not only figure out that nuts need to be pre-shelled and dried, but that they needed a softer rock for the anvil and harder rock for the hammer. They also need at least some type of bipedal ability to carry the rock in the first place and use it as a hammer.
Apparently some white-faced Capuchins have figured out that they can soak nuts in water to soften it before hammering it open [1].
I have gone down a couple rabbit holes based on his videos and while it seems like he's occasionally gotten some facts wrong or misunderstood an argument, I'm pretty confident he's doing a decent job accurately representing the archaeology.
Pretty much. Being able to transfer/build a fire is a lot easier than starting one. Fire starting requires bow/flint&steel and a lot of patience. Control basically means using simple torches to transfer fire from one place to another (where the initial source is either lightning/wildfire or embers of a previous fire).
By far the strongest evidence is the Qesem Cave in Israel, which had a central hearth and so many burned animal remains that it couldn’t have been accidental. Unfortunately the dating on that is controversial and the error bar is huge at 300 +- 100 kYA (200,000-400,000 years ago).
Bottom box: I want to search the archive for saved snapshots
I have defaulted to using the bottom box first, since it's usually much faster
Red blood cells, and collagen from dinosaur bones. With the idea that even current museum hosted bones might have more??? Today is a wild day for me.
This is very heavily disputed and very much not consensus opinion. (see https://en.wikipedia.org/wiki/Homo_naledi#Possible_burials and https://www.sciencedirect.com/science/article/abs/pii/S00472...)
The accepted age of the Oldowan (Mode I) tool industry is almost three million years. That’s been accepted by mainstream archaeology for almost a hundred years.
The widely accepted age of woodworking - aka the construction of wood tools - is at least 1.5 million years. Again this is mainstream archaeology. None of this has been suppressed by anyone.
Wikipedia has a bias against everything outside of mainstream academia, there are activist groups like Guerrilla Skeptics that go through articles and rewrite them to undermine anything remotely fringe. It's not as objective as people like to think it is.
Ultimately, it's that scientists are humans, too. Despite some of them really making their research data-forward, things like tenure, career, funding, and even who would publish your work now and in the future all create normal human environments that reward small, incremental changes to a body of knowledge that don't upset the apple cart, not discoveries that suggest huge changes. In fact, large changes and discoveries can be resisted and denied further research in favor of the status quo.
This is not a new phenomenon by any means:
Both warm-blooded dinosaurs and the Chicxulub impact were both theories dismissed as fringe for decades before overwhelming evidence led to them being accepted as likely. In no small way thanks to Jurassic Park.
Recall that eugenics and phrenology both used to be widely accepted scientific "fact."
100 fairly prominent scientists signed a letter stating emphatically that Einstein's Theory of Relatively was categorically wrong and should be retracted.
Plate tectonics was seen as fanciful crackpot musings for decades. The author of the original theory died 30 years before plate tectonics was even considered possible.
Germ theory was dismissed for most of Louis Pasteur's lifetime, despite being able to literally show people yeast in a microscope.
Helicentrism has a storied past.
Quantum theory was also denied heavily at first. Now it saves photos to our hard drives.
And how many times has the earliest dates of hominids and tool use and human thresholds of development been pushed back by tens of thousands of years?
This is not an exhaustive list, by any means.
So we have ancient examples and modern ones - and everything in between. So the level of education or scientific progress or equipment are not the cause. Humans are. Humans do this all the time. So until overwhelming evidence surfaces, which can take decades or longer, claims like this shouldn't be dismissed out of hand until proven solidly in error. A theory is a theory, so let it be a theory.
You've worked in those settings, and you think archaeologists reject tool use older than 1 mya?
Also, you don't understand that science is a process, based on evidence, and revision is an essential part of that process? Archaeology especially advances regularly, because evidence can be relatively very rare. If they weren't revising it, it would mean the whole research enterprise - to expand knowledge - was failing.
> how many times has the earliest dates of hominids and tool use and human thresholds of development been pushed back by tens of thousands of years?
I don't know, how many times? Tool use is universally believed, in the field, to have begun at least 2.58 million years ago, and with strong evidence for 3.3 mya. Tens of thousands of years isn't in the debate. See this subthread:
As long as there is low number of samples with such age you should always assume methodological mistakes in measurement
? I don't think you can find anyone in archaeology who says tool use began less than 1 million years ago (mya). Maybe you mean something else?
The univeral consensus in archaeology says tools emerged either 3.3 mya, which is still subject to debate last I knew, and certainly by 2.58 mya - the Odowan industry famously discovered by the Leakeys in the Oldovai Gorge in Tanzania, in 1969.
The same consensus continues with the development of the more advanced Acheulean industry ~1.76 mya, which dominated until ~ 400,000 years ago (arguably the most successful technology ever).
