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10 Cards in this Set
- Front
- Back
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Issue 10: "Did bipedalism develop as a response to heat stress?"
Describe Yes answer |
Walking on 2 feet reduces the exposure to sun by 60%, raises the body to cooler air currents, bipedalism requires less energy
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Issue 10: Describe no answer
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Hominins developed bipedalism to scavenge for meat
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Issue 11: Is A Africanus on the direct line to modern humans?
-Describe yes answer |
Discusses the discoveries of David Patterson and Mary Leakey, Donald Johanson
- Rift valley may have separated the species |
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Issue 11: No answer
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Only the Africanus has so far adapted to changing environments
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Issue 12: Is the Hominid Brain expansion linked to the invention of stone tools?
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Tool use could have began when hominids began living in more open spaces
-Tool making requires a higher order of intelligence than does tool using |
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Issue 11: No
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The radiator theory: the mastoid and pareitary emissary veins help to cool the brain when people overheat. Different direction of bloodflow
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Muriquis are unique because:
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they have very large testicles, they do not fight among themselves, they are polygynous
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Hunting among chimps on the savannah is characterized by:
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independent, selfish, and competitive hunting which is possible because the trees are further apart
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Bonobos are not...
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male dominant
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Female baboons make friends with
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about equal high and low ranking males
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