The human race is unique in the animal kingdom in that we are strictly a bipedal species, and the human anatomy, such as the skeleton, reflects this unique posture. The human spine’s S shape, our long and strong legs, arched feet, and how the spine enters the skull from the bottom sets us apart from other mammals such as felines or canines. This gave an evolutionary advantage to early hominids, who chased prey animals across pre-historic Africa. But today, while bipedal movement is still a real advantage, there are also some wear and tear issues that come with bipedal movement. …