Theories Of Bipedalism

Essay outline Theories of the origin of bipedalism. Introduction: There be dozens of theories that wipe out been constructed to explain the evolution of the mankind skillful posture and locomotion. It is unlikely that there was only iodin unique(predicate) reason why bipedalism was selected for (Harcourt-Smith 2007), besides it is realise that bipedalism provided a clean-living survival benefit. The theories to be discussed are arboreal bipedalism; the conjecture that our ancestors descended from the trees, allowing silverish locomotion. vent of the hands; the theory that the get for hands pushed us upwards and lastly, the aquatic ape theory; wading in water thrust us to walk upright. The negatives and positives of each theory will be examined to determine their likeliness or story to which they would have affected the evolution of human locomotion. Theory one(a): Freeing of the hands The combination of tool use and the increasing motivating of free ha nds whitethorn have helped drive innate laterality in modern humans. a) Braccini (2010) researched the relationship between chimp tool use and the ensuing effects on laterality and posture. b) During tool use, chimpanzees would automatically become more lateralized, especially if the host capability was supported (Braccini 2010). Therefore tool use may have pushed our nearest ancestors upright.

a) What Braccini does not state is why chimpanzees and other(a) big(p) apes never evolved towards bipedalism since they all use tools (to an extent). b) Carsten (2010) discussed that the ear liest of ancestors would have take away ha! nds and arms for many reasons (self defense, food gathering, infant carrying), notwithstanding was most likely neither a trigger nor a promoter of walking upright. Theory Two: arborescent Bipedalism Instead of bipedalism stemming from an adaptation from knuckle-walking or other well-known theories, antiquated ancestors may have adopted arboreal locomotion whilst liveness in tree canopies. c) Studying modern...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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