The Out of Africa Model of Human Origins

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One of the most hotly debated issues in Anthropology focuses on the origins of modern humans. There are two theories about the origin of modern human, one being that modern humans originated in Africa and the second being that pre-modern humans migrated from Africa to become modern humans in other parts of the world. While both theories originate in Africa, most evidence points to the first theory, the Out of Africa Model. The amount of fossils of modern-like humans that are found in Africa, DNA studies suggesting a founding population in Africa, and stone tools and other artifacts are just some of the evidence that supports the Out of Africa Model.
First, one must understand what this theory really is. The Out of Africa model, also known as the replacement theory, states that modern humans originated in Africa exclusively and then slowly migrated to the rest of the world. This has been suggested to have happened, probably in two separate waves, somewhere between 56,000 and 200,000 years ago. This theory holds that while there were other hominids on other continents, they never evo...

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