Charles Darwin Origin of Species chapter IV focuses on Natural Selection. This is when an organism is different from the others. For example, more fur, longest legs, and sometimes different color. That gives them an advantage and helps them live better and longer in their environment.Natural selection occurs when favorable characteristics in a species are selected for while injurious variations are selected against. In this chapter Darwin discusses why these characteristics can be an important for survival. Nature makes any slight advantage increase an organism’s likelihood of surviving over another, since these advantages are heritable it’s perpetuated in future generations. According to Charles Darwin, there are survival advantages …show more content…
This limits species by not honoring advantageous characteristics on them. Such action, consequently making these species less likely to survive and also putting them at risk of extinction. The question some people may ask while reading this chapter is, how do species and varieties differ? In chapter II Darwin discusses the quandary of differentiating variations within a species from variations that signal the subsistence of two separate species. It is nearly impossible to define the difference between varieties and species. Based on my knowledge and understanding in biology species are living organisms consisting of comparable individuals able to exchange genes. Variates are classificated subdivision of species that consist a group of naturally occurring breds. Sexual selection is the selection of a mate based on certain characteristics, like the largest antlers, the brightest colors, the best nest-building skills.Which is another factor in species evolution.male individuals with variations that allow them to successfully attract females are more likely to reproduce and therefore to produce more offspring than others. For example the brightly colored feather of a bird, or singing to their potential mate. These traits will be passed on to offsprings and the cycle keeps