Bipedalism Bipedalism Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped , meaning "two feet" (from the Latin "bis" for "double" and "pes" for "foot"). Types of bipedal movement include walking, running, or hopping. Few modern species are habitual bipeds whose normal method of locomotion is two-legged. Within mammals, habitual bipedalism has evolved multiple times, with the macropods, kangaroo rats and mice, springhare, hopping mice, pangolins and hominin apes (australopithecines and humans) as well
Animal Rights Without Liberation do not have an interest in liberty or not being used by others, and so have no "prima facie" right to freedom. They do, however, possess significant interests in not being made to suffer and in not being killed, and so have a "prima facie" right not to be made to suffer and a "prima facie" right not to be killed. "Animal Rights Without Liberation" seeks to decouple animal rights from animal liberation. For Cochrane, of central importance is the question of sentience, understood as "the capacity for phenomenal consciousness". No position is taken on precisely how many animals are