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Lamarck's Influence On The Development Of Darwins Theory Of Evolution

3849 words - 15 pages

There have been many ideas on the theory of evolution. Some simply take our existence for granted, others prefer to explain all evolution in terms of the bible and the presence of a God. However, there are those who have researched the topic of evolution and have offered an explanation as to where a species comes from and how they evolved in the manner that they did. This type of science has been studied for a very, very long time, and one of the most famous minds in the field of evolution was a man named Charles Darwin. Darwin was not the first one to offer theories on evolution. There have been many scientists who preceded him. These earlier evolutionists came up with models of evolution that were unfortunately unworkable. One of these early pioneers was Jean-Baptiste Lamarck. Lamarck believed in deism and advocated natural religion based on human reason. He believed in the harmony and rationality of the world. And although flawed, the work of Lamarck did not go unnoticed, however. Darwin also believed in the harmony of the world, and it was Darwin himself who said that Lamarck was the first man whose conclusions on evolution brought about excitement and attention. He was the one who showed law in organic and inorganic species evolution. As it turned out, the work of Lamarck was quite influential on Darwin. Lamarck's views on inheritance of characteristics can be seen in Darwin's accounts of natural selection. When Lamarck wrote of transmutation, Darwin followed with his beliefs of the mutability of species. As well, Darwin had used Lamarck's ideas on use and disuse of organs. Lamarck was not the greatest of influences on Darwin, but he was an important one.One of the most important arguments in Darwin's theories was the idea of natural selection. It is generally thought that the world first heard of this idea in the form of Lamarck's inheritance of acquired traits theory. Lamarck's work showed that organisms improve themselves on their own. Then these new advantages for the environment would be passed on to the species offspring on the genetic level. This idea of self improvement detailed how, through hard work of the organism, the path of evolution was continuous, always improving to the point of perfection. Lamarck had said that organisms must first be faced with a different mode of environment that would trigger some sort of pressure for an altered gene, to be inherited in the next generation. This process has come to be known as Lamarckism. (Gould, 1980) Darwin did not deny any of this. He regarded it as support for natural selection as an evolutionary mechanism. Darwin's theory was more complex then Lamarck's, but the basic structure was there. Darwin had rooted his theory on the concept of adaptation, just as Lamarck had previously done. Adaptation is the notion of organisms responding to a changing environments by evolving either a form or function of the body that would better suite it in the environment. Lamarck had explained that the...

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