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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. - PowerPoint PPT Presentation
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Homo erectus: 1,800,000—300,000 ya
A B
350,000—200,000 ybp
350,000—130,000 ybp
Then: archaic Homo sapiens
350,000—200,000 ybp
Archaic H. sapiens Zambia Modern H. sapiens Ethiopia
160,000 ybp350,000 ybp
100,000 ybp
Klasies River Mouth CaveSouth Africa
chin
Lothagam skull: Kenya9,000 ybp
Cro Magnon, France30,000 ybp
Chauvet Cave, France: c. 20,000 ybp
Prior to 50,000 ybp modern H. sapiens only in Africa, Europe, and Asia
Homo floresiensis ?
Dwarfism and Gigantism on Islands
• Not universal but fairly common• Natural selection
– Dwarfism: food energy constraint– Gigantism: availability of large prey
Gigantism: Komodo Dragons
Two dating methods: 35,000 – 18,000 ybp
Brain smallerthan that of smallestAustralopithcines
380-420 cc
Homo floresiensis reported in 2004
c 3 ft tall