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April2810 PRINTABLE - Last class What are all the species...

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Unformatted text preview: Last class What are all the species in the Australopithecines? Which are robust? Which are gracile? What are the differences between robust and gracile? When do they occur in time? Space? How did they live? What did they eat? Where did they live? What are the possible phylogenies of the Pliocene hominids? Homo habilis Last time... What defines the genus Homo? When does Homo first appear? Where? How do we identify these fossils as Homo rather than Australopithecus? How are Homo habilis different from the other hominids they are contemporaneous with? Homo habilis I Where and when is Homo habilis found? 0 What are its defining charateristics? 0 Why is it considered Homo rather than Australopithecus? 0 How is it similar and dissimilar from Australopithecus sediba? 0 How is it similar and dissimilar from Home rudoifensis? Why Homo? 0 What is the adaptive pattern of early Homo? 0 Why were big brains and small teeth suddenly and strongly selected for? Savanna-Woodland Olduwan Chopper How to make an Olduwan Chopper Kanzi on You-Tube O mzllwww.xoutube.comlwatch ?v= I szH9UUQg2 Olduwan tools How do you interpret the evolutionary record? Homo erectus vap-ens Hmplens HVSOQIEHS 0 an extinct species of relative large African and Eurasian hominids characterized by a modern post- cranium. slightly projecting face. pronounced superorbital torus. and medium sized brain (by . . Heraczus homlnld standards) H.2IEGSIEI' Hvemnus H.habuls H,hobalrs “rm-5"“ Homo ergoster (erectus) Changing adaptive pattern 0 Expanding brain size 0 Expanding home range 0 Changing diet 0 Changing metabolism 0 Extended life span 0 Changing social behavior? Homo rudoifensis and Home erectus ‘v Homo ergaster Brain size over time in :n Ago [milimu oi yr-nn} Body size Body «if: his Homo erectus lifeways 0 tool technologies that reflect advanced cognitive skills 0 Dietary shift to a more heavily meat- based diet than its predecessors n Feedback loop Brain size expansion /\ Change in diet Exaggerated lst year growth \/ Behavioral changes emphasizing learned behavior OH 9 - African Homo erectus l .8-.8 mya n Homo erectus 75 Homo erectus sag‘mal keel long. low skull nuchal torus supraorbital torus broad, flat nasal bones large mandibles. no chin shovel-shaped incisors :1 Mn. ma 79mm 0.33” t w .t. 6;?" Leave Africa? 0 Predation! 0 Technology? 0 Migrating herds? 0 Anatomical changes? an Dmanisi Javan Homo erectus I .6-I.2 mya Sangiran Chinese Home erectus Lantian H. erectus |.0 - 0.7 mya ...
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