Chimps aren't fully bipedal, and make tools now.
But the rudimentary and disposable tools they make aren't likely to be the kinds of artifacts that archaeologists will find in a few million years.
Chimps aren't fully bipedal, and make tools now.
But the rudimentary and disposable tools they make aren't likely to be the kinds of artifacts that archaeologists will find in a few million years.
But the rudimentary and disposable tools they make aren't likely to be the kinds of artifacts that archaeologists will find in a few million years.
True, but they also aren't the kind of tools that anybody would need to carry around. You'd want to carry around either tools that were difficult to make or tools that couldn't be easily and immediately obtained. Furthermore, I would expect rude stone hammers to be employed early on in the toolmaking tradition. It's not out of the question that sophisticated organic-material toolmaking existed long before it occurred to anyone to pick up a rock to crack a nut, but it seems unlikely, in my opinion. It's somewhat surprising to me that chimps don't do this even now, and it's certainly surprising that early hominids didn't do it, but they just didn't.