The Evolution of Modern Humans

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While time travel still remains elusive to us, scientists have been able to discover things about our past as a species that were practically inconceivable over 150 years ago when Charles Darwin released his book entitled The Origin of Species. They have especially uncovered many pieces to our still incomplete puzzle over the past 20 years so that we now have a nearly complete idea of how our species Homo sapiens came to be. This story of our history includes dozens of species’ and hundreds of fossils and bones, yet fairly few complete or even partial skeletons. Hominids have gone through many changes to get from one of our earliest species’ Ardipithecus ramidus to Homo sapiens which scientists have been able to discover through a process called genetic analysis. Research over the last twenty years has given paleoanthropologists and researchers a far more definitive idea of how Homo sapiens came to be.

Ardipithecus ramidus was one of the earliest hominids and our ancestors, was discovered by Tim D. White and his team of researchers in Ethiopia between 1992 and 1994. The fossil that they first found was part of the partial skeleton nicknamed “Ardi.” They had, in total, found all of her skull and teeth, hands, feet and pelvis (See Figure 1). However, when she was uncovered, her bones were so fragile that they crumbled when touched. The team then had the entire stones that her bones were in excavated to the National Museum of Ethiopia where they could then be analyzed and reconstructed using CT scans. A new genus (Ardipithecus) was specially created so that Ardi would be distinguished from the previously established genus, Australopithecus. Within the species name, “ramidu...

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