Kin selection

know as sexual selection. This proposed mechanism can explain characteristics like plumage of peacocks, fight in elephant seals over females mate, longer neck in giraffes to exhibit dominance in females and so on. These characteristics contradict natural selection (survival of fittest). Sexual selection can be divided into two processes, namely intersexual and intrasexual selection (Buss, 1986). Peacock tail which is against natural selection is an example of intersexual selection and…

The underlying reason that we as humans cannot follow the advice of Jesus of Nazareth is that we are selfish. What this quote is saying is that what ever action or item you would want to get from someone you should return something of equal value. Having that sense of equal reciprocity is against human nature. Throughout the history of human evolution, it is the selfish ones that survive (Dawkins 2006) . Selfishness goes along with competition with both starting very early in our evolutionary…

Natural selection is what makes organisms different and what makes them able to adapt to their environment. Natural selection occurs during natural sexual reproduction. If your child is born with brown hair rather than blonde hair, they have no less of a chance to be successful than someone with blonde hair. According…

relationship between colonization and incest behaviors amongst populations of these beetles. Although the species is indicated to have strong relative, kin, and familial recognition, similar to the lemurs studied by Boulet, the difference of the environment and ecological barriers that were present in the beetle populations have major consequences on their mating choices. (Jordal, Beaver, and Kirkendall, 2001) The sociobiological theory approach to incest avoidance also takes into consideration…

An Overview of the Determinant of the Genomic Diversity Genetic diversity provides variation in which that selection can act upon and it determines the response of population towards environmental change. Therefore, knowledge in genetic diversity is crucial for developing breeding strategies and also for the management of endangered species. Understanding the determinant genetic diversity is also essential for resolving the long-standing riddle in population genetics, the disproportionately…

Evolution is the theory used to describe exactly why life on earth changes the way it does. It is evident that all things change throughout time, but understanding the reason behind these changes can be infuriating. In Evolution for Everyone, David Sloane Wilson bonds the basic concepts of evolutionary theory with different disciplines such as: art, religion, language, and pro-social behaviors. Wilson establishes a unity between the evolutionary theory and the development of culture, language,…

World made humans lose that evolutionary quality, because the average person in the novel’s society has no qualms with frequent, promiscuous intercourse. Also, males are hormonally expected to be competitive over partners; Darwin’s theory of sexual selection “depends...on a struggle between the individuals of one sex, generally the males, for…

Darwin derived the concept of the struggle for existence in part from Malthus's essay. He believed that creatures less fit for their environment would tend to die off. This would be called the struggle for existence. Some people thought that nature was a balanced system, but Darwin saw it as a mechanism. He believed the creatures that were best adapted would survive. Although Darwin agreed with Malthus on the struggle of individuals, he differed in opinion on Malthus's idea of the increase…

Evolution has always been a subject of questioning discussion ever since Charles Darwin established the theories of Natural Selection and Descent with Modification. According to Darwin, some animals were born with certain characteristics that became advantageous for their particular environment. As time passed, however these organisms modified some of these physical characteristics that they were born with in order to survive in their particular environment. This modification allowed the…

Theories and studies in science tend to change over the years due to new evidence as well as social changes. Science, like a living organism, adapts and is reevaluated with new outcomes. It is important to look back at past studies and ideas not only to retest hypotheses but also to see how far the scientific community has brought society. One branch to look back on would be biology, more specifically human variation. At the present time we know that race is not a biological variation. All…