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Homo erectus : 1,800,000—300,000 ya. A. B. Then: archaic Homo sapiens. 350,000—200,000 ybp. 350,000—130,000 ybp. 350,000—200,000 ybp. Archaic H. sapiens Zambia. Modern H. sapiens Ethiopia. 160,000 ybp. 350,000 ybp. Klasies River Mouth Cave South Africa. chin. 100,000 ybp.
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Then: archaic Homo sapiens 350,000—200,000 ybp 350,000—130,000 ybp 350,000—200,000 ybp
Archaic H. sapiens Zambia Modern H. sapiens Ethiopia 160,000 ybp 350,000 ybp
Klasies River Mouth Cave South Africa chin 100,000 ybp
Lothagam skull: Kenya 9,000 ybp
Cro Magnon, France 30,000 ybp
Prior to 50,000 ybp modern H. sapiens only in Africa, Europe, and Asia
Dwarfism and Gigantism on Islands • Not universal but fairly common • Natural selection • Dwarfism: food energy constraint • Gigantism: availability of large prey
Homo floresiensis reported in 2004 Brain smaller than that of smallest Australopithcines 380-420 cc Two dating methods: 35,000 – 18,000 ybp