Darwin

      In Darwin's Origin of Species, chapter 14, he writes "Judging from the past, we may safely infer that not one living species will transmit its unaltered likeness to the distant futurity." Here, Darwin addresses the crucial concept of natural selection which is more commonly known as and referred to as 'survival of the fittest.' Darwin eloquently conveys such an idea that is true throughout life on earth and, more specifically, throughout evolution of nature, animals, and mankind. Furthermore, Darwin justifies his claim that not just one species will last forever without changing at all according to its environment, surroundings, etc. by acknowledging the past. Looking back on human kind, the animal kingdom, and nature, we see numerous accounts of natural selection. This natural selection perfectly explains the reasons for evolution throughout  any species.