Humans are said to be one of the most, if non the most intelligent and successful species on the planet, but it was not always like that. It took seven billion years of growing for us to be what we are now. From our earliest ancestors, Australopithecus, to us, Homo sapiens contrary changes in the environment and challenges forced us to adapt, discover, and adopt new things in order to survive. Through this process of inborn selection only those with the right abilities and brainpower give stand up on.
To better understand our history of evolution we will endure to go back three point two one thousand meg years ago where one of the first species of upright take up apes or hominids were discovered. Lucy, a female Australopithecus afarencis is well know for being part of the earliest species of hominids and was discovered containing forty-seven turn up of two hundred six bones in a full skeleton. During Lucys time the Earths plates were unfirm causing the environment and climate to change. The rift valleys were forming and the rain forests were dying. In this new environment they imbed it more efficient to move about on two legs. It is this simple act of walking on two legs that enables us to attain new skills that will eventually change human life forever.
Two million years ago existed two species of hominids, Paranthropus boisei and Homo habilis who twain come from the same species but lead very different ape-man lives. The boisei have adapted so well in their environment, specializing in eating tough vegetation and the use of found objects as tools to eat termites, the first source of protein hominids ate. On the otherwise hand, the habilis need for food led them to make tools used for hunting, other step towards the evolution of man. One and a half million years ago a new species of hominids appear, Homo ergaster with their colossal modern looking noses, bodies with less hair and skin with millions of precise sweat glands that helped them cool-off giving them the advantage to...If you want to get a full essay, order it on our website: Ordercustompaper.com
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