Absurd opinion alert
Don't forget this stuff is all, ALL I say, less than 10,000 years old so arguing about how we 'found out' how to use these tools is totally moot.
Long live the sky fairies!
Neanderthals were just as good at working leather as modern humans - and used the same tools still employed by leather-workers today - a new study has found. Four views of the most complete lissoir found during excavations at the Neandertal site of Abri Peyrony Four views of the most complete lissoir found during excavations …
...like on custom ipads for yacht owning CEOs, but admittedly they are not in common use...
"Sorry Neanderthals, you can't use those lissoirs, iBone megacorp have a design patent on lissoirs with rounded corners".
This in turn lead to the extinction[1] of Neanderthal man people.
[1] In reality the Neanderthals did not die out completely, and there is evidence that Neanderthal and 'modren' humans inter-bred, about 4% of modern human mitochondrial DNA seems to come from Neanderthals. In fact, it's possible to see some Neanderthal traits in modern humans; e.g, low forehead, prominent eye-brow ridge, broad nose, occipital bun/ridge, and in the USofA, membership of the republican party.
"It's even possible that humans got the idea from the Neanderthals, which are considered a separate species from homo sapiens."
'Humans' got a lot more than ideas from the Old Ones, they also aquired some nasty old DNA, which we ALL carry around with us, some as much as an estimated 4.5% of the total. Somebody musta been tooling around.
Mine's the black leather jacket with the eagle on the back...
Neanderthals ARE humans. All members of the genus _Homo_ are humans. They are not modern humans.
The idea that they're not humans goes back to a deeply and fundamentally flawed paper by Pääbo et al, published in Nature in the 90:s, in which they used flawed methodology to prove that sapiens and neanderthalensis never interbred.
Today we know that they DID interbreed, that neanderthals never died out but merged with immigrants from Africa, and even Pääbo et al. today simply ignore that their initial claim to fame was that they "proved" that neanderthals a different species.
They yet haven't managed to bring themselves to admit that the "out of africa" theory they championed, and which became dogma through their flawed Nature paper, was wrong, and the "multiregional theory" they claimed to have disproven was right all along. That Kuhnian paradigm shift probably can't come until Pääbo et al retire.