Term
| Why bipedalism? (5 theories) |
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Definition
1. Carrying theory - ancestors forced to carry tools and food and they had to stand up to do so.
2. Postural hypotheses - feeding from bushes (standing), looking out over savannah (tall grass).
3. Mate provisioning - possibly monogamous, males left home to get food - they had to carry food back. PROBLEM: NOT MONOGAMOUS.
4. Thermoragulation - Standing up is less hot than quadrupedalism (surface are exposed to sun).
5. Energy efficiency - bipedalism more efficient than quadrupedalism, so it was a better choice for endurance walking between woodlands. Fits other theories. |
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Term
| Running adaptations in homo not seen in Austrolopithecines. |
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Definition
-Larger joints, tendons.
-Tall waist, neck.
-balanced head
-longer legs
-hairless and sweating.
-lack of these traits means that Lucy would have been a TERRIBLE RUNNER. |
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Term
| More running = diet shift in homo. |
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Definition
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Term
| Endurance running in homo most likely evolved due to |
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Definition
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