The difference of Man; bipedalism

Only humans and human ancestors walked upright. Apes can only do it briefly:- http://www.sciencedaily.com/releases/2013/07/130725125447.htm

Complete thread:

The difference of Man David Turell 2013-02-13, 09:36 PM
- The difference of Man dhw 2013-02-14, 03:15 PM
  - The difference of Man David Turell 2013-02-14, 06:48 PM
    - The difference of Man dhw 2013-02-15, 08:47 AM
      - The difference of Man David Turell 2013-02-15, 04:12 PM
        
        The difference of Man dhw 2013-02-16, 12:21 PM
        
        The difference of Man David Turell 2013-02-16, 03:41 PM
        
        The difference of Man dhw 2013-02-17, 12:56 PM
        
        The difference of Man David Turell 2013-02-17, 03:39 PM
        
        The difference of Man David Turell 2013-02-18, 03:51 PM
        
        The difference of Man dhw 2013-02-18, 07:29 PM
        
        The difference of Man David Turell 2013-02-18, 08:52 PM
        
        The difference of Man dhw 2013-02-19, 07:45 PM
        
        The difference of Man David Turell 2013-02-19, 09:52 PM
        
        The difference of Man dhw 2013-02-20, 08:21 PM
        
        The difference of Man David Turell 2013-02-20, 10:04 PM
        
        The difference of Man; language David Turell 2013-02-21, 04:01 PM
        
        The difference of Man; language David Turell 2013-04-03, 01:59 PM
        
        The difference of Man; language dhw 2013-04-04, 08:25 AM
        
        The difference of Man; language David Turell 2013-04-04, 01:41 PM
        
        The difference of Man; bipedalism David Turell 2013-07-27, 04:45 PM
        
        The difference of Man; human origin? David Turell 2013-09-28, 02:27 PM
        
        The difference of Man; human origin? dhw 2013-09-29, 04:17 PM
        
        The difference of Man; human origin? David Turell 2013-09-29, 08:51 PM
        
        The difference of Man; human origin? dhw 2013-09-30, 01:31 PM
        
        The difference of Man; human origin? David Turell 2013-09-30, 02:37 PM
        
        The difference of Man; human origin? dhw 2013-10-01, 02:17 PM

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The difference of Man; bipedalism (Introduction)