Not just the clean lines, but the smooth curves too. It's difficult to do something like this and not make it all bumpy and uneven. Definitely lots of skill and time involved.
Well if we want to get pedantic, every unique thing passed around and spread is a meme. Jokes, art styles, idioms, words, greetings, most social behavior really. And you can go a step further and say diseases, species, even all of life is a meme.
And if there ever was a place to use this definition of meme it would be... LinguisticMemes, but this is a good second place.
If I remember correctly, Homo sapiens sapiens was not only coetaneous with Mammoths, but we are widely considered to be one, if not the main cause of their extintion.
Also constructions like Gobekli tepe, with it's carvings and decorations, predate the extintion of Mammoths by something like 6000 years.
birds are the continuation of the theropod dinosaur lineage.
humans are the continuation of the early synapsid lineage also present at the time (which later gave rise to the early mammal progenitor).
when people say birds are dinosaurs they mean the lineage didn't branch as much as it did for humans, which I think is more survivorship bias than anything.
Weren't there like full blown civilizations at that point? Kinda weird to refer to mammoths as if it were some stone age prehistoric period and be surprised that someone could craft something like this then lol
Just using some tiny mammoth population on an isolated island in Siberia to state "MAMMOTHS WERE STILL ROAMING THE EARTH WHEN BLAH BLAH BLAH" is somewhat disingenuous.
Roaming the earth means roaming all - or at least a very significant portion of - the earth, not some very isolated region. So I would say yes - if some tiny population of mammoths was still alive in some limited area at this time, they were not 'roaming the earth'.
Also pretending that 4000 years ago humans were still hunter gatherers or something (it's kind of implied in the wording imo). 4000 years ago there were plenty of fairly developed civilisations around.
An alternative that I like to use in the lab is squinting and holding the sample really close to my face. Perhaps they used my method if the bugs weren't big enough?
Not to mention that some insects even have a bit of contrast between the lenses so it's easier to understand they are compounded.
And additionally due to individual lenses compounded eyes arent smooth - by reflecting light at different angles you can make the "bumps" obvious.
Also if there is like a water droplet on grasshoppers eyes you can clearly see it's surface structure. Just like you can see individual pixels on your (high dpi phone?) screen the same way.