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 the first 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
The bipedal hominids vision increased, making it able to see and do more. In the movie 2001 Space Odyssey,(Anthropology 100 9/5/97) Stanley Kubrick gives his interpretation on how we evolve. ------------------------------------------------------------------------**Bibliography**. Now give this hominid a sharp stick or a blunt object, practice as how to properly use it, and pg 3 maybe arm agility. (Diamond 1992 pg 12) When developing and using tools, the species takes control over the environment and makes it work for them. This scenario could have happened but the truth is nobody knows exactly how and why things turned out the way they did. Some adapted to ground life and started to become bipedal, but more than half of them stayed on all fours. Tough, healthy, and agile hominids, the strong survived and the females produced healthy offspring which is called reproductive fitness. When one community learns to use bones as weapons, then that group !can take over the resources in a certain area and be selected for, which increases reproductive fitness. Tools had a major affect on teeth, hair, behavior, and even language. (Websters Ninth New Dictionary) Take for instance a hominid that walks on all four limbs. The communities battled other primate communities for the natural resources in their environment. After the proto human began to walk on two feet there hands became free and moveable.
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