Darwin collected and explained thousands of animals and plants. In South America, he observed that organisms adapt to habitats ranging from the jungle to the meadow, mountain habitat. In temperate regions, the species is closer to the tropical region species in South America than the corresponding species in the temperate region of Europe. For example, there are no rabbits in the prairie of Argentina, but rodents such as rodents have nothing to do with rabbits in Europe, but like other South American rodents.
These developments were synthesized in Charles Darwin's theory of evolution through natural selection as well as embryology and paleobiology results. In 1859, Darwin founded the process of organic evolution and established the evolution of organic evolution as a new foothold by providing evidence of what it did. Darwin provided a new direction of morphology and physiology by combining them into a common biological theory: organic evolution theory. The results are based on animal classification reorganization, new research on animal development, and early attempts to determine its genetic relationship. At the end of the nineteenth century, the rise of spontaneous occurrence and the rise of diseased bacterial theory, the genetic mechanism is still a mystery.
Genetics and diversity are important for the theory of natural selection of Charles Darwin, as explained in "Origin of Species" in 1859. For Darwin, the rules governing them will never be known. Due to the lack of proper interpretation of heredity and diversity, the theory of Darwin is logically incomplete. For decades, the theoretical center black box is still dark. After the death of Darwin in 1882, many events began to cause opposition from evolutionists. One important development is Weisman's reproductive quality theory that individual germ cells (separate from other cells of the body, somatic cells) carry the genetic information inherited from generation to generation. Tramak's "soft" inheritance theory, or inheritance of acquired features
Charles Darwin proposed evolution by natural selection. Darwin 's natural culling evolution theory points out that young people born from all sorts are competing for survival due to the problem of food supply. Young people who survived the next generation often show favorable natural changes; hence the process of natural selection - these changes are transmitted genetically. Therefore, each generation is adaptively improved in the previous generation, but this gradual and continuous process is the source of the evolution of species.