Bipedalism is form of locomotion such as walking and running on two legs. It isn't uncommon to see animals walking on two legs but it isn't a common practice as their usual means of locomotion. Many including gorillas and chimpanzees assume bipedalism on a temporary basis in order to act on a particular function or form of locomotion. Bipedalism has been discussed and reviewed many times and most explanation target a single cause. Like Lucy having having such a small stature standing at only 31/2 feet tall, the challenge she would have venturing out in the forest would be dangerous in the world of the grasslands. Standing through the grass would announce there presence to present predators in the area. Being slow, clumsy runners, the early hominids would have quickly fallen prey. Lacking the ability to fall back onto all fours and outrun the carnivores would have signaled the end of human evolution.There also anatomical changes that are associated with walking bipedally like the limbs and pelvis having to change.The pelvis had to be able to hold the weight of the whole body. The knees had to lock. There was also a difference in feet, and brain grew. The hind legs had to become stronger to carry all the weight. …show more content…
A locomotive shift to a habitually bipedal walk upright along with hand-oriented tasks such as carrying offspring. A more impressive threat posture, fashioning tools, holding food, and carrying other objects also came along as positives with bipedalism. Bipedalism also requires less energy which means hominins had the ability to travel farther distances. Disadvantages include the Pelvis size being constrained, greater exposure to to potential prey, pressure on the body from its curved structure by our upright