ANTH 2700 Chapter Notes - Chapter 15: Insular Dwarfism, Mitochondrial Eve, Neanderthal
Document Summary
Modern humans have a distinctly round head that contains a large brain (1350 cc) Postcranial skeleton is less robust and musculature is lighter. The origins of homo sapiens: the dna evidence. Mitochondrial dna found in the cytoplasm and inherited exclusively from mother"s sex cell. Wilson, cann and stoneking proposed all mtdna is traced back to population of african women (mitochondrial eve) Indicates sapiens resided in africa for considerably longer than outside of africa and had greater time for diversification. Earliest agreed-upon fossil evidence places modern humans at 40kya despite mitochondrial. The origins of homo sapiens: the fossil evidence. Regional continuity model: modern homo sapiens had multiple origins from existing local populations; each local population gave rise to a population of modern homo sapiens. Replacement model: homo sapiens evolved in africa and radiated out of this area, replacing existing hominin populations. Traditional viewpoint is homo spaiens groups left around 60-50kya.
