Wikipedia:Spørgehjørnet/Hvorfor begyndte mennesket at gå på to ben?: Forskelle mellem versioner

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m fixing doi from hijacked website, see here
 
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*http://school.discovery.com/lessonplans/programs/apestoman/ Citat: "...3. The ability to walk erect gave hominids greater speed, stamina, and agility, and therefore a better chance for survival in the African savannas, or treeless plains. 4. The ability to walk erect is considered a milestone in human evolution because it allowed for the use of arms..."
*http://www.channel4.com/history/microsites/H/history/a-b/bones.html Citat: "...H. erectus would have been more efficient at walking than we are today because our bodies have since adapted to allow the birth of larger-brained infants..."
*[http://www.blackwell-synergydoi.com/links/doiorg/10.1111/j.0021-8782.2004.00296.x/full/ Fossils, feet and the evolution of human bipedal locomotion - J Anatomy, Vol 204, Issue 5, pp. 403-416 (Full Text)]
*Med en religiøs tilgangsvinkel: http://www.reasons.org/resources/fff/2001issue07/index.shtml#bipedalism