Sexual Selection and Natural Selection

Selection is a functional relationship between phenotypic and adaptive. Since natural selection is the production of living organisms based on their physiological characteristics, the spring water of the young generation has strong, ideal and genetic aspects of the parent. Although they become more adaptable to the environment, others make the phenotypes better than others due to their individual characteristics (Sinervo, 1997). According to Charles Darwin, health can be explained in three different ways that interfere with the average of population phenotypic features.

Evolution can be seen in every aspect of life, but evolution does not occur in the same process in every aspect. Dunnell highlighted and explained why evolution had such a small influence on archeology with the article "Nature Choice, Scale, and Cultural Evolution". Cultural evolution and biological evolution are not the same. Biological evolution uses theoretical propositions to explain the mechanism of biological adaptation and evolution. The law of cultural evolution is "not a theoretical proposition, but an empirical summary" (Dunnell, 1996: 25).

Dunnel points out that the purpose of the article titled "Nature Choice, Scale, Cultural Evolution" is to explain why evolution has such a small influence on archeology. He said that it is his wish to provide a means to effectively integrate evolutionary features and anthropological theory. He first explained that cultural evolution and biological evolution are not the same (1996, p. 24). Evolution of culture can not explain cultural phenomena (1996, p. 25), because "the law is not a theoretical proposition, but an empirical summary".

Selection can affect demographic change in various forms, such as stable selection, direction selection, diversification, frequency dependent selection, and sexual selection. Since natural selection affects the allele frequencies within a population, individuals may be more or less genetically similar and the phenotypes displayed may be more similar or different. If natural selection supports the average phenotype and the extreme mutation is selected, the population will experience a stable choice (Figure 1a). For example, in a population of mice living in the forest, natural selection is best suited for forest areas and may be beneficial for individuals who are less likely to be discovered by predators. Assuming the ground is fairly uniform brown, the fur most matching that color is most likely to survive and proliferate through their brown coat genes.

Sex selection is an inevitable consequence of natural selection, and the two processes work the same way. Natural selection and sexual selection often result in different selection pressures. Natural selection produces features promoting reproductive and survival, but sexual selection promotes reproductive success but sacrifices survival (Birkenhead & Moller, Darwin Ghiselin (1969) 1991). Sexual selection occurs when a member of a sexual partner mates disproportionately with a heterosexual member based on secondary characteristics (ie behavior or structure other than reproductive organs or gametes). Selection of sex can be done in two ways; for competition (inner) or gender competition or marketing (middleman) between the inside, women choose the most suitable male (Clayton 1991)