In evolutionary theory natural selection is the only way to proceed adaptional changes. In fauceir theory natural selection is only one way to excert genetic adaptational control. It is the way to control a population's allele composition.
The term was dubbed natural by Darwin as it occurs naturally, controlled by environmental factors. Natural selection is opposed by artificial selection, a process in which the selection is made by a breeder. From fauceir point of view this distinction is artificial because environment in the first case and humans in the second are both fauceirs with different agendas. Furthermore, selection is only one of many possible ways to excert feedback in evolution and adaptation. Selection as a fauceir itself that changes with evolution.