chapter 11: the genus homo. brain size was about 750cc homo habilus: “handy man”, around 2 mya...
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Chapter 11: The Genus Homo
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Brain size was about 750cc
Homo habilus: “handy man”, Around 2 mya (1.6-2.3), Primary finds at Olduvai Gorge and Lake
Turkana
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Limbs more human like: arms shorter and legs longer
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Teeth were not large like the other specimens of the same age (boisei)
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Cutting: Buttering meat
Bashing: Breaking open long bones for marrow
Oldowan Tools
First tools or first stone tools?Implies greater cognitive ability
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Behaviors?
• Hunting?• Scavenging• Homicide/cannibalism• Built simple huts: like bushmen today?• Larger home ranges• Probably nuclear family units: one male, one
(maybe more) females• Food sharing with kin• Seminomadic• Central place foraging?
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Homo erectus
African Asian
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Brain Bigger:about 1000cc
Teeth very human like
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Skeleton Look more human like
(more robust)
"The Turkana Boy“ (early erectus)
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Choppers: simpler with cutting edge (Africa and Asia)
Hand axes: symmetric biface(not in Asia, bamboo curtain)
Acheulean tools
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Behaviors
• Big Game hunter (elephants and such)• Big packages of meat imply wider sharing networks
(kinship and reciprocity)• First Fire?• Choppers used to working skins (clothes making)• First to leave Africa (Europe and Asia)
– New Habitats
• Language?• Symmetry in tools implies special cognitive ability• Cultural?
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Homo floresiensis