darwin
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In Class Essay: Darwin's Theory of Natural Selection
To start this essay, I will firstly like to mention that Charles Robert Darwin (1809 1882) a prominent British scientist, who was the main advocate of modern evolutionary theory through his idea of "the development of all forms of life through the slow-working process of natural selection"(Encarta Encyclopaedia). According to him, this important concept of Natural Selection or the Survival of the fittest as pronounced on Darwin's words "is that process in which the evolution of species occur," is the battle for the limited resources for life on this planet; he states that the strong or better adapted, tend to survive by pushing out the weak. As a general principle this obviously works, within limits. Predators look for the easier prey first, and so the weak and sickly are eliminated. The survivor is not "governed by the providential design of the almighty creator but by the irrevocable laws of species' adaptation to the "changing conditions" of an environment. More over, Darwin adds that those who have greater capabilities to adapt to a given environment are the ones that will have the capacity to survive. He calls Natural selection the acceptance of profitable variations and the rejection of more harmful ones.
Therefore, when getting into the analysis of the logic of Darwin's argument one can see that change or variability (as he mentions it) are necessary until a certain extent, for all man and for the species that take part of the natural system. Darwin assumes that all creatures fit into the chain of life on this planet, taking what they need and returning something to maintain the balance. Usually, when man does not interfere, this process has assured the preservation of the natural world...