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Unformatted text preview: more sophisticated than H. erectus ' tools, employing handles to gain extra leverage. Did Neandertals evolve gradually into modern humans, or were they replaced by modern forms originating from a single population? The answer to that depends on the answer to the question of the origin of H. sapiens from H. erectus . The out-of-Africa hypothesis suggests Neandertals were a separate species ( H. neandertalensis ) replaced as modern humans ( H. sapiens ) spread from Africa. The regional continuity hypothesis suggests Neandertals were a subspecies ( H. sapiens neandertalensis ) that evolved into modern humans ( H. sapiens sapiens )....
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- Fall '10