What is Man?
...himpanzees, our closest “relatives.” In the skeletal system, for the body to stand upright, the tailbone must be longer and curved. Scientists say that for some reason, we decided to start walking upright, so physically, the spine adapted and curved at the bottom to force the chest to center over the pelvis, giving the body a better center of gravity. Along with the adaptation to walk upright, man’s thought processes began to become more complex. The sign for this account was the impressions found inside of a skull. They showed folds of the brain impressed on the insides of the skulls. As the folds increased, the size of the brain increased, and as the size increased, the size of the skull increased. Such a difference in size is noted by anthropologists between A. ramidus kadabba and Lucy, Australopithecus afarensis. One thing that set off the belief that complexity in thought was evolving was the increase in culture. As anthropologists saw an increase in skull size, cave paintings were beginning to date back to the same era. Naturally, a connection was made. So with certainty, scientists concluded two facts for sure separate us from common apes and chimps. Man inherited bipedalism and complex thought, or rather evolved it. Natural selection came into play with these conclusions. Why was Homo sapien sapien the only survivor of the Homonids? There are ideas that say the complex thinking, upright walking beings may have out-done their prehistoric cousins. With these traits at their disposal, hunting became easier, along with other means of survival. With the ability to out-think their prey, it became easier to eat and control surrounding environments by killing whatever. Maybe they used all the resources, or decided it was time to move on, but migration may have become a common thing. Once a spot was used, the species probably adapted and moved on. Thus, consequently, leaving the rest of the non-evolved species with nothing but leftovers. Of course nobody really knows exactly what happened between our cousins and us. As our brains continued to evolve, our society did, als...