more valuable artifacts because they are the ones that have survived to modern times. Others artifacts that were needed for the survival of habilis , were likely made from wood, bone, fiber, and hide. These materials have not survived like the stone tools. The tools of habilis have been found in larger numbers than its actual bones. This is because one individual could make hundred of stone tool in a life time. Homo habilis discarded tools and the waste products of making them. The tools remain the most solid evidence of the lifestyle of Homo habilis. According to Jurmaine "...based on their characteristic tools types, they are often described as being from the pebble chopper industry. " The pebble chopper technology originated at least 2 million years ago and was the major method of making tools until about 1.5 million years ago. Even though the Olduvai tools were poorly made it was a huge step toward having the ability to control the environment. According to Professor J. Schell "The tools show that habilis had the ability to use an object from nature to perform a specific task and to also modify that object according to a predetermined formula." This process involved foresight, planning, and experimentation. Such advanced mental processes led the Leakeys to conclude that the makers of the Olduvai tools, Homo habilis , were part of the genus homo, and to call them "handy humans". ...
