31. They said the bones'structure should offer new evidence about the origins of bipedalism , or upright walking. 32. The next day he noticed another picularly the foramen magnum was at the bottom of the skull indicating bipedalism . 33. Because of this, their motor development was channeled into turning their bear crawl into a substitute for bipedalism . 34. This may have contributed to the evolution of bipedalism as such an ability became increasingly necessary for human activity. 35. The bones of Australopithecus anamensis are the earliest unambiguous evidence for upright walking, or bipedalism , by a protohuman. 36. She also suggeste $ tIat assisted childbirth coincided with the advent of bipedalism and long pradqved the cranial growth surge. 37. "The most compelling evidence for bipedalism is the length of the hind limbs, " said Reisz. 38. It is not confirmed how much other features of its skeleton reflect adaptation to bipedalism on the ground as well. 39. Anatomically, the evolution of bipedalism has been accompanied by a vertebral column, feet and ankles, and skull. 40. The underarm regions seem more important than the genital region for body odor which may be related to human bipedalism .
