bipedalism

1. We think about the evolution of bipedalism as one of first events that led hominids down the path to being human.
   双腿直立行走的进化是原始人向人类进化的最初阶段中的一步。
2. Biomechanical characteristics of bipedalism and possible locomotion mode of Australopithecus
   二足直立行走的生物力学特征和南方古猿阿法种可能的行走方式
3. In this view, adaptations to bipedalism restricted the width of the birth canal and, hence, the size of the baby that can pass through it.
   按照这种观点，人类向直立行走的动物进化时限制了产道的宽度，以致婴儿的体型不能通过产道。
4. Known as bipedalism, our habitual upright posture is unique in the animal kingdom and has arisen through specific complementary adaptations of the body and brain.
   作为两足动物，我们直立的习惯在动物界是独一无二的，这种习惯也是为了适应我们的身体和大脑而采取的一种特殊补偿。

noun

1. the bodily attribute of being bipedal
   1. bipedalism made the human form of birth possible