In the face of nature, there is no good or bad for everything. Darwin's theory of evolution in The Origin of Species puts humans in a very ordinary position. However, many people have always been reluctant to accept this view, but Preconceivedly distorted Darwin's theory of evolution as a theory of progress and spread it. According to evolutionary theory, it is difficult to predict the evolutionary trend of a species, because the mechanism of evolution includes two factors-the environments and the species itself. We cannot predict changes in the environment. It is also difficult for us to fully grasp how the species itself inherits and mutates. Evolution theory can only explain to a large extent, rather than accurately predicting it, so it is unreasonable to give the evolutionary trend of species based on evolution theory. Although evolution theory is difficult to describe the evolution of species Details, but still helps people have a deep understanding of life. The text is intended to explain:. ['The fundamental difference between evolution and progress.', 'Counter-evolutionary arguments lack a factual basis.', 'Evolution is difficult to predict the evolutionary trend of species.', 'The meaning and role of evolution should be scientifically understood.']