Tools and Humans

HOW TOOLS TRANSFORMED PROTO-HUMANS INTO MODERN HUMANS According to archeological and physical record, tool use has had an enormous effect in the transformation of proto humans into modern humans. What stimulated tool use was the proto humans intrest in new and easier ways to do things. With the introduction of tools, body morphology changed and reproductive fitness increased. Evolution did not happened over night. It took 4.5 million years for humans to get where they are today. Scientists have concluded that about 3.5 million years ago, there was thefirst proto human. A proto human resembles extinct hominid populations that had some but not all the features of a modern homo sapien. Such features were prolonged moments of bipedality, change in the pelvis and the reduction of the sagittal crest. (Diamond 1992 pg 34) In order for this proto human to evolve into a human, it needed tools. Some of the tools might have been discovered by accident or by early creative geniuses? The !
way they discovered the tools is unknown, but the changes the tools made were to the physical morphology and the body behavior. They began to walk upright, gathered supplies, cut food, and used weapons.(Diamond 1992 pg. 40) About 3 million years ago, after generations of learning how to use these tools, the hominid came out of the trees, and stayed mostly on the ground. The animal had an abundance of food and water and lived in a population of; on the ground proto-human animals. Some adapted to ground life and started to become bipedal, but more than half of them stayed on all fours. The bipedal hominids vision increased, making it able to see and do more. It obtained the ability to use weapons more effectively and efficiently because it had arms with agility. It found all the good meat and valued resources then eventually took over the whole community. Soon after the bipedal creatures gained control the hominids on four legs die off, precisely because they c…

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