please help with tool vs weapon edge pics and men's womens knives

[josh stout]

The consensus is that H. erectus was a scavenger, and that his big brain was made possible by his and his immediate ancestor H. habilis ability to use stone tools to scavenge kills. H. habilis "the handyman" was the first to make stone tools, and it is thought that the tools were specifically made to crack big bones for the marrow. The Oldawan technology developed by H. habilis, of rounded pebbles and cobbles with a single sharp chipped edge, lasted for a few hundred thousand years

(http://en.wikipedia.org/wiki/File:Pi...iopie_fond.jpg)

and was inherited by H. erectus who took it out of Africa. The Acheulian hand axe replaced this technology about a million years ago. The hand axe largely replaced Oldawan technology until it hit Asia. In Asia for an unknown reason the Oldawan survived. Some people think it was the bamboo.
Josh