- Apr 17, 2006
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Check out the hips and posture of Australopithecus afarensis, that's an upright walker with only a slightly more human-like brain then a chimp.Not after they just got down from the tree.
Whose looking after the women and children that can't run anywhere. In African villages they have fences so they are protected, and can sleep in peace. A monkey that just climbed down from the tree must return to the tree. Monkeys are not designed to run on the open plain, never seen one yet!
The plains striding pursuit hunter comes before the tool user. Tools are just more efficient if you are smart enough. A kind-of smart ape can develop some crumby tools and thus has slightly less need of the muscle power of a basil ape. This works in very small steps... and lines up with the fossil evidence. Slightly bigger brains, slightly smaller muscles, slightly better tools.
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