12_oldowan_toolmakers_and_the_origin_of_human_life_history

12_oldowan_toolmakers_and_the_origin_of_human_life_history...

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How Humans Evolved Chapter 12: Oldowan Toolmakers and the Origin of Human Life History W. W. Norton & Company © 2009 1
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First Stone Tools box3 Dated from 2.5 mya box3 Earliest tools found in the Awash River basin of Ethiopia 2
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First Stone Tools box3 Oldowan/Mode 1 technology square6 Core and flakes square6 Hammer stones square6 Choppers box3 Unknown which hominin was responsible 3
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Figure 12-1 4
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Figure 11-2 5
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First Stone Tools box3 Because Oldowan toolmakers probably were human relatives, paleontologists and anthropologists can learn much about the factors that effected human evolution by studying Oldowan archaeological sites. 6
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Complex Foraging box3 Three types of foraged food (in increasing acquisition difficulty order) : square6 Collected square6 Extracted square6 Hunted 7
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Complex Foraging chimp human square6 Collected 94% 10% square6 Extracted 4% 30% square6 Hunted 2% 60% chimps: unprocessed collected ( e . g ., leaves, fruit) humans: processed extracted ( e . g ., tubers) and hunted ( e . g ., game) 8
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Figure 11-3 9
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Complex Foraging box3 Various hard-to-learn skills are necessary for procuring food.
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