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Evolution of Human Beings

 

            Evolution of Human Beings from food gathering mammals to a highly civilized, structured and industrialized society can be studied directly as a function of the percentage of human resources used in obtaining the required amount of food. The earliest human beings, Homo habilis roamed the earth 1.8 million years ago spending all their time gathering and scavenging for food and had little or no time for any sort of social or cultural development. The Homo erectus around 1 million years ago however were beginning for hunt for their own food, while scavenging. As the human race progressed forward to about 10 thousand years ago, the Homo sapiens or the modern man had learnt to grow and cultivate the desired food items in amounts that were sufficient for them to give up a nomadic lifestyle. Giving up the nomadic lifestyle gave humans resources to develop as communities and engage in endeavors that their nomadic ancestors would never be able to accomplish. There are also patterns clearly visible thought the modern history that show the civilizations with highly developed farming and irrigations systems spending their resources lavishly on massive projects that have eternally altered our earth's terrain. .
             The earliest of known human relatives, Homo habilis roamed the earth from about 1.8 million years ago until about 1 million years ago. They did not have strong claws to get their prey and could not outrun sabers and tigers found in wild. They did not have tools effective enough to kill wild animals, and hence lived by gathering foods like fruits, vegetables, roots etc. They scavenged the fat rich, bone marrow from dead animals which were trash to other carnivorous animals. They had developed simple tools from stones to help them protect themselves against the wild animals. These tools however weren't very effective and they were always on move, hiding and running from their predators. Most of their time was spent their human resources were being spent in gathering food and protecting themselves from their predators.


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