There are answers within the link I posted, it's a lot of reading but worth the effort...
"Wise men, psychologists, philosophers and theologians have surmised and conjectured about the human over the centuries, and still do, but the truth about the human may be found only through factual knowledge. That factual knowledge lies in a process called evolution. The human is what evolution made him."
Maybe you need to read up a bit Max, the answers to your questions are readily available.
Why did man develop the large brain? Why did the other primates not do so? The answer, of course is in his particular environment, how well he matched it, and what the evolutionary alternatives were. His upright posture was both a blessing and a curse. He found himself standing upright on the ground. He could not outrun or out-fight his predators. It would take massive changes in his physical structure to improve the situation. Evolution usually works in an incremental fashion. Mutations occurred to his entire body and brain. Small changes to his body did bring about some physical changes. He developed stronger and better shaped eating tools. Still, his biggest problem was the predators, big fast cats and the men in the next tribe. Incremental physical changes did not help that problem one whit. Yet every time the brain grew incrementally (mutations that affected brain size), good things happened. He not only was able to handle his predator problem better, but his cultural life improved. With the free arms and hands to carry things and to handle weapons, his lot improved with each brain size increase.
Evolution, through the liberal application of death and hardship, had built a strong body and a sound mind by the time of the appearance of Homo sapiens sapiens. Both were designed for entirely different environments than experienced by man today. We live longer today for three reasons. One is our health care and diet. The second is that our bodies were constructed to last thirty years under brutally harsh conditions. Removal of those harsh conditions allows a longer life span. Third is our culture. We cheat evolution of the deaths that it needs to cleanse the gene pool. In the short run we will live longer. Eventually mutations will erase these benefits. Evolution seeks to have us hanging over the edge.
bodleing Forum Posts (13,810)
...Does a ski tan count?
RE: No Smokers, no Heavy Drinkers and no Dogs...
Bad poetry!!!