Charles Darwin’s doctrine of artificial selection?

Darwin’s doctrine of artificial selection laid the foundation for the theory of evolution. Darwin noticed and distinguished three forms of the struggle of a species for existence. They are fighting within a species, fighting other species, and fighting the environment. During these processes, weak organisms that are not promising for procreation either die or cannot have offspring for a number of reasons. Without natural selection, evolution could not exist in principle, since stronger and more adapted organisms would not be able to suppress weaker forms.