Charles Darwin´s Sexual Selection Or Natural Selection?

The fifth part of the evolution theory is natural selection. Natural selection is an idea that life doesn’t require creation or guidance from a supernatural being. Natural selection depends only on nature in which the population will adapt to their environment while the one who are unable to adapt will die off. But natural selection cannot provide perfection but can only help the creatures to evolve just enough to be able to survive.

desireable trait. When a creature has a trait that allows them to survive and thrive in

Animals fight for survival daily, and sometimes their lives depend on their ability to adapt with their surrounding environments. Natural Selection is the process in which individuals have certain traits that allow

Sexual selection was an idea proposed by Darwin and refers to the process in which males and females attempt to maximize their chances of reproductive success. Within a species there are certain characteristics that make individuals attractive to potential mates. An example of this is in peacocks, female peacocks are attracted to males with long brightly colored tails, even though this makes them easier to be spotted by predators. This characteristic then evolves within the species due to how males with this characteristic have a higher chance of reproductive success and their characteristics being passed on to surviving offspring.

In the process of natural selection, individuals that have certain inherited traits tend to survive and

Albeit, the sexual selection theory is presumed force of natural selection causing individuals to develop reproductive strategies which maximize the like hood of their producing the fittest possible offspring. Otherwise, suggested a competition between males and competition for females as the two most likely mechanism of sexual selection theory.

Natural selection is an important component of evolution. Natural selection occurs when some members of a population are better fit for survival and reproduction than the others in that population (Phelan 284-85, 2011). The environment in which organisms live plays a part in natural selection as well. Depending on the conditions of the environment, the organisms may pass down selected traits to their offspring. These selected traits will allow for the next generation to better adapt and survive longer. One example of evolution that has occurred in the past ten years is that of hypolimnas bolina, or the blue moon butterfly. The blue moon butterfly evolved through the process of natural selection in order to survive. The male blue moon

“If no such variations exist, the population rapidly goes extinct because it cannot adapt to a changing environment” (O’Neil, 1998-2013). Scientists call this reproductive success. “Within a specific environment context, one genotype will be better than another genotype in survival or reproduction for certain reasons having to do with the way its particular features relate to the environment or relate to other organisms within the population” (Futuyma, 2000-2014). The theory of evolution is explicable through various kinds of scientific research.

Offspring that possess favorable traits are more capable of surviving into adulthood and thus reproducing. We know from genetics that there is an increased likelihood that their offspring would also possess that desirable trait. The population of individuals possessing the trait would increase as more individuals possessing the trait survived to reproductive years, and fewer without the trait did not. Natural selection can help prevent a species from going extinct if they were to face adverse conditions that

In Charles Darwin’s Understanding Natural Selection, he states important points; “natural selection may modify and adapt” a species, species improve their traits in order to survive, and “the toughest, healthy males will leave the most offspring” (Darwin 927, 928, 929). In Darwin’s Understanding Natural selection, both natural and sexual selection play an important role on animals and the environment. For instance, natural selection can modify or adapt a species. “In social animals will adapt the structure of each individual for the benefit of the community” if they “profit by the selected change” (928).

When Darwin coined the term “natural selection” he described another subset of it referred to as “Sexual selection”. Sexual selection can be defined as a special case of natural selection where rather than focusing on traits that serve to aid survival, organisms develop traits and behaviors in efforts to increase mating. Many times, these two efforts come in conflict with each other and tradeoffs arise. A male can be outcompeting another male through overall health and fitness, but be losing when it comes to gaining the females attention. Common examples of this tradeoff include peacocks maintaining elaborate tails but at the same time, making themselves more visible to predators, or fruit flies competing through dances to win the attention

What is sexual selection? Sexual selection is the natural selection arising through preference by one sex for certain characteristics in individuals of the other sex. This means they are copulating with their other mate. Sexual selection can be dangerous in some cases depending on the rate and length of copulating. It can be so harmful to species that they may not be able to survive from it afterwards.

Darwin's proposal on sexual selection seemed to have sat well with Darwin's Victorian peers because it fitted with contemporary ideas about male dominance. Whether due to the resistance to the idea of female choice or for other reason, sexual selection theory lay virtually dormant through much of the late 19th and early 20th centuries. While new discoveries about genetics were being incorporated into Darwin's ideas of how evolution happens, almost all of the attention was devoted to natural selection and how species are formed and diversify. Many scholars and scientists had written about the role of beauty in human and animal life, which apparently made Darwin think about how much apparently frivolous attributes as the peacock's tail could

Sexual selection can best be described by the definition given by Darwin himself. Sexual selection is “the advantage which certain individuals have over other individuals of the same species solely in respect of reproduction” (Hosken et al, 2011). Sexual selection occurs throughout the animal kingdom, where male frogs dominate through the depth of their croak, and certain peacocks reign superior based on the colour and intricate detail on their tails. They remain superior to their lesser counterparts as they bear more admirable characteristics, from which they are chosen by females of the same species.

Charles Darwin broached the theory of natural selection in his book the Origin of Species, which has been considered the basis of evolutionary biology to this day. Natural selection is when populations of a species evolve over the course of many generations. Darwin believed that species were not created separately, but instead, species were derived from one another. In other words, the evolution of species creates many variations among creatures, and this is because all of those species came from a common ancestor, and characteristics changed to increase the species chance of survival.