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#niarb llams #hominin evolution #brain size #ape to human #upright walking #primitive human

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#homo erectus #upright man #cognitive evolution #brain size #tool development #fire use #paleoanthropology

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#neanderthal #strong hominin #fossil record #hominid #brain size #homo neanderthalensis #physical anthropology

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#homo habilis #stone tool #brain size #paleoanthropology #hominin