title: Bipedalism.
abstract: Reasons why mammalian bipedalism is so rare. Problems encountered by the larger arboreal mammals when they descend to ground level. Reasons for believing that hominid ancestors were never knuckle-walkers. Primate models which combine arboreal life with incipient bipedalism. Disadvantages of mammalian bipedalism. Critique of some of the savannah-based theories on the origins of human bipedalism.
authors.forename: E
authors.initials: E
authors.lastname: Morgan
mesh_terms: D000818:Animals; D005075:Biological Evolution; D006801:Humans; D008124:Locomotion; D008322:Mammals; D011187:Posture; D011323:Primates