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Re: Okay seriously now (AAT again)
Pat Dooley (patdooley@aol.com)
23 Dec 1994 01:57:54 -0500
>This is a far cry from the characterization offerred by Pat that
>A. afarensis walked like she was wearing flippers. Sussman and
>Stern attribute the inefficience to retention of some arboreal
>adaptation. How this helps the AAH position is beyond me.
I was quoting Roger Lewin. I've heard the arboreal adaptation line
before but it leaves a lot of questions open. Chimps and Gorillas
are less arboreal than their common ancestor (and ours). They
are spend most of their time on the ground. Our ancesors, according to
S&S,
stayed in the trees longer or went back to the trees before
returning to the ground, much more erect and bipedal than other
apes. I couldn't accept such an evolutionary U-turn without
lots of fossil evidence.
Pat D
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