Re: AAT Theory

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Subject: Re: AAT Theory
From: Benjamin H Diebold, bdiebold@minerva.cis.yale.edu
Date: 8 Nov 1995 21:58:03 GMT
In article <47r95b$2l@news.ycc.yale.edu> Benjamin H Diebold,
bdiebold@minerva.cis.yale.edu writes:
>Troy Kelley (tkelley@hel4.brl.mil) wrote:
>[snip. And, bipedalism evolved for ]
>: 2) Traveling between trees. This is weak too, because when you are
>: traveling between trees you are at more risk to predatation. So, if you
>: happen to be still working out that awkward bipedal posture, on the way
>: to the next tree, you would be an easy target for another predator.
This
>: would naturally select out any hominids who even attempted bipedalism
>: while in dangerous situations.
>[snip]
>
>Why not take the predation during travel between trees as a selection
>pressure to develop better bipedalism? May the better bipedalist win!
>
>Ben

Because quadrapedalism is generally faster and more efficient than
bipedialism. So really, why should one abandon quadrapedalism for a less
efficient mode of transport, in a dangerous environment?

Troy

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