It is interesting that when we talk of early humans, there seems to be a difference between the way Homo Sapiens brains work, and the brains of other human species. It seems there is always a link between cutting tools and Homo Sapiens, whether an axe, spear, or whatever.
I think also that early humans notices that animals had long sharp teeth and claws, while they themselves did not. When they killed such an animal in the beginning, maybe a stick or a large stone, they would have taken out the teeth and claws and used those, just as the Polynesians used shark teeth. As for a knife, the first time a Homo Sapiens cut his or her knee on a sharp rock the idea would have immediately hit home that this could be used on game, as well.
I Pray Heaven to Bestow The Best of Blessing on THIS HOUSE, and on ALL that shall hereafter Inhabit it. May none but Honest and Wise Men ever rule under This Roof! (John Adams regarding the White House)
Follow the Christ, the King,
Live pure, speak true, right wrong, follow the King--
Else, wherefore born?" (Tennyson)
NRA Life Member