Sexual Selection Research Paper
Jacqulyn E. Lopez
Kevin Bessenbacher
English 101 M
October 8, 2012
Sexual Selection
For any evolution to gain some legacy, surviving is not enough without reproduction. In the world, over 90% of all the species have sexual reproduction. In this case, two individuals of a certain species from each sex have to mate so that they can produce offspring. Reproduction is seen as an expensive ordeal which has potential of exerting a considerable evolutionary pressure. This pressure was portrayed by Darwin as sexual selection operating through some members of a given species. In terms of mating, members of a given species may have an advantage over others in respect to mating hence resulting in a form of selection. The increase in the mating success …show more content…
Intrasexual selection involves members of the same sex having an attempt to outdo their rivals more often during a direct encounter. This selection is responsible for the evolving of some of the male features for instance deer antlers, beetle horns as well as individual males having large body size which is able to give them an advantage while fighting with a number of potential competitors. Intersexual selection basically results in a number of interactions between the sexes vey precisely involving the mate choice. Female tends to be choosy, whereby they tend to consider a number of morphological as well as behavioral traits from some given mates in order to be getting the best from them in terms of their fitness. This consequently makes males to compete with each other in order to gain female’s attention (Brennan …show more content…
Sexual selection is quite powerful to be able to produce a number of features which are basically harmful to the survival of any individual. The power of sexual selection is brought about by genes which carries some survival traits helping the individual to move from one generation to another. Male and females interacts with their mates in two different ways. Male compete in order to have access to females while females choose which male is suitable for them to mate with. They are able to choose which sperm from the male will fertilize their eggs and even going to an existence of ejecting sperm from the undesirable mate (Brennan
Kevin Bessenbacher
English 101 M
October 8, 2012
Sexual Selection
For any evolution to gain some legacy, surviving is not enough without reproduction. In the world, over 90% of all the species have sexual reproduction. In this case, two individuals of a certain species from each sex have to mate so that they can produce offspring. Reproduction is seen as an expensive ordeal which has potential of exerting a considerable evolutionary pressure. This pressure was portrayed by Darwin as sexual selection operating through some members of a given species. In terms of mating, members of a given species may have an advantage over others in respect to mating hence resulting in a form of selection. The increase in the mating success …show more content…
Intrasexual selection involves members of the same sex having an attempt to outdo their rivals more often during a direct encounter. This selection is responsible for the evolving of some of the male features for instance deer antlers, beetle horns as well as individual males having large body size which is able to give them an advantage while fighting with a number of potential competitors. Intersexual selection basically results in a number of interactions between the sexes vey precisely involving the mate choice. Female tends to be choosy, whereby they tend to consider a number of morphological as well as behavioral traits from some given mates in order to be getting the best from them in terms of their fitness. This consequently makes males to compete with each other in order to gain female’s attention (Brennan …show more content…
Sexual selection is quite powerful to be able to produce a number of features which are basically harmful to the survival of any individual. The power of sexual selection is brought about by genes which carries some survival traits helping the individual to move from one generation to another. Male and females interacts with their mates in two different ways. Male compete in order to have access to females while females choose which male is suitable for them to mate with. They are able to choose which sperm from the male will fertilize their eggs and even going to an existence of ejecting sperm from the undesirable mate (Brennan