PowerPoint PresentationSlide 2Slide 3Slide 4Slide 5Slide 6Humans are bipedal: walk on two limbsThey are unique among the primates fornormally using this form of locomotionLocomotion: how one normally moves(National Geographic 1993)The foot is veryspecialized forwalking bipedallyTerrestrial quadruped:On ground, walks on four limbsNote the palms are down(Turnbaugh et al. 1993:172)Arboreal quadrupedNorthern woolly spidermonkey from Brazil(Feder & Park 2001:115)Note that the spider monkey has aprehensile (grasping) tail -- foundonly among some New World monkeysVertical Clinging andLeapingPhoto of tarsier(Feder & Park 2001:114)Brachiation: swinging fromthe arms(Turnbaugh et al. 1993:174)Knuckle-walking: upper body is semi-erect(orthograde posture), quadrupedal walkingusing knucklesChimpanzee (Turnbaugh et al. 1993:198)Gorilla (Turnbaugh et al.
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