Yesterday Beijing is attacked by heavy rain, and it should have something to do with the El Nino Phenomenon. However, since it happened much more frequet in recent years, and the destructive power is much more stronger. Standing in front of the window, I saw the water in the street raised higher then knees. It seems the rain is the natrual weather, but it should related to huan activity. Large numbers of death are caused by the changeable environment. Is it the result of natrual selection or the result of human selection? The fittest in natural selection is turn to be the fittest selected by human behavior. The order and rules are break. If a fish can be drowned, how can people do to change and survive?