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Hominid activity - Research Paper Example

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Hominid activity

Defining species on the basis of extinct fossils can be a tricky affair. Scientific estimations via collected species sample populations are the only way to generate tree diagrams reflective of the human origin. Noteworthy, species exhibits different range of variations. In spite of the extent of accuracy in fossil dating methods, which in fact determines humans’ origin, a number of theories exist with varied explanations on the decent of species leading to the current status of man. Below are sketches of Ian Tattersall, Bernard Wood and Donald Johansson theories of evolution to date.
According to the three family trees full of ancestors, they all begin with a similar ancestral lineage. Ardipithecus ramidus, who lived approximately 4.4 million years ago, is at the apex of all the three theories. The hominid, thought to have lived in east Africa, is posited to have been a herbivore surviving on fruits and seeds and leaves. Ardipithecus ramidus evolved years later into Australopithecus Anamensis. A. afarensis immediately followed with almost the same survival characteristics living in almost similar environments in the same region of East Africa-Kenya. The endings are the same. Again, the three evolutionary trees end with similar creatures: the H. Sapiens and H. Neanderthalensis, which are preceded by one immediate ancestor: the H. Heidelbergensis.
Ardipithecus ramidus, which begins evolutionary process in all the three evolutionary theories, is posited to have evolved by its

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Summary

According to Phylogenies, evolutionary relationships between species are derived based on primitive and derivative features. The homo genus, for instance, had larger brains compared to those of the Australopithecines and the living apes: this is an example a derived feature. …
Hominid activity
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