So they can use tools (a rock for crushing acorns here) for work and make their lives less of a hell than what it already has been, instead of just holding sticks to point at humans?
So they can use tools (a rock for crushing acorns here) for work and make their lives less of a hell than what it already has been, instead of just holding sticks to point at humans?
I believe some old comics show yukkuri being more than capable of using tools like this (though admittedly knowing how to crack nuts is smart)