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 1
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First Stone Tools b Dated from 2.5 mya b Earliest tools found in the Awash River basin of Ethiopia 2
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First Stone Tools b Oldowan/Mode 1 technology s Core and flakes s Hammer stones s Choppers b 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 b 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 b Three types of foraged food (in increasing acquisition difficulty order) : s Collected s Extracted s Hunted 7
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Complex Foraging chimp human s Collected 94% 10% s Extracted 4% 30% s 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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b Various hard-to-learn skills are necessary for procuring food. 10
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This note was uploaded on 11/28/2011 for the course SCIENCE BIO 1M03 taught by Professor Stone during the Fall '11 term at McMaster University.

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12_oldowan_toolmakers_and_the_origin_of_human_life_history...

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