Re: antiAATer hasn't become AATer

From: Rich Travsky (traRvEsky_at_hotMOVEmail.com)
Date: 10/18/04 

Date: Sun, 17 Oct 2004 21:30:22 -0600

Marc Verhaegen wrote:
>
> http://www.blackwellpublishing.com/journal.asp?ref=0021-8782&site=1
> Journal of Anatomy
> Volume 204 Issue 5 Page 363 - May 2004
> doi:10.1111/j.0021-8782.2004.00303.x
> REVIEW
> Mechanisms for the acquisition of habitual bipedality: are there
> biomechanical reasons for the acquisition of upright bipedal posture?
> Holger Preuschoft
>
> Concl.: ... Niemitz's (2000, 2002) reasoning in his 'amphibischer
> Generalisten-Theorie' is more ecological and behavioural than biomechanical.
> He begins with a generalised quadruped that was spending as much time on the
> ground as on trees. This animal is assumed to prefer to exploit the animal
> protein resources such as the invertebrates living in shallow water along
> river banks and on the seashore. In wading, upright posture increases loads
> on the hindlimbs and therefore gives a better contact with the ground than
> does quadrupedal posture, which is more subject to the effects of buoyancy.
> Further factors include water resistance acting against the limbs during
> fore-swing (two limbs receive less water resistance than do four) and the
> more mundane matter of avoiding becoming wet. ...
>
> (Where did we hear this before? Algis?)

Key word: ASSUMED

No evidence.