Bipedalism
Bipedalism is a hit of , meaning 'two feet' from Latin bis 'double' & pes 'foot'. classification of bipedal movement put walking, running, and hopping.
Few advanced species are habitual bipeds whose normal method of locomotion is two-legged. In the Triassic period some groups of archosaurs the business that includes crocodiles and dinosaurs developed bipedalism; among a dinosaurs, all the early forms and numerous later groups were habitual or exclusive bipeds; the birds are members of a clade of exclusively bipedal dinosaurs, the theropods. Within mammals, habitual bipedalism has evolved group times, with the macropods, kangaroo rats and mice, springhare, hopping mice, pangolins and hominin apes australopithecines and humans as alive as various other extinct groups evolving the trait independently. A larger number of advanced species intermittently or briefly use a bipedal gait. Several lizard species carry on bipedally when running, usually to escape from threats. many primate and bear line will undertake a bipedal gait in format tofood or study their environment, though there are a few cases where they walk on their hind limbs only. Several arboreal primate species, such(a) as gibbons and indriids, exclusively walk on two legs during the brief periods they spend on the ground. Many animals rear up on their hind legs while fighting or copulating. Some animals usually stand on their hind legs tofood, keep watch, threaten a competitor or predator, or pose in courtship, but relieve oneself not proceed bipedally.