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Saturday, February 9, 2019

Charles Darwins Theory of Evolution Essay -- Natural Selection, Evolu

IntroductionIt is commonly thought today that the surmise of growth originated from Charles Darwin in the nineteenth century. However, the idea that species mutate over time has been just about for a long time in champion form or another. Therefore, by Darwins time the idea that species change from one fiber into another was by no means new, but was rejected by most because the proponents of growing could not come up with a hunky-dory mechanism that would explain this change.But how did Darwin come up with an acceptable theory of evolution, and how did Darwins proposal of natural selection impact the theory of evolution? The answer lies in the study of the works of others, and in the works of Darwin himself, done his theories, his travels and his scientific pioneering. The most influential evolutionary theories prior to Darwin were those of Lamarck and Geoffrey St. Hilaire, developed in the midst of 1794 and 1830. Lamarck suggested that species evolve through the use or di suse of particular organs. In the classic example a giraffe that stretches its neck slightly to celestial orbit higher leaves will clear up in neck length, and this small gain would be passed on to its offspring. (Poirier, McKee, 1999) St. Hilaire, on the other hand suggested that the change was discontinuous, elephantine in magnitude, and occurred at the production of offspring. However, these theories of evolution were based on explanations that offered no demonstrated mechanism. (Bowler, 1990)Darwins theory of evolution differs in that it is based on three easily verified observations. First, individuals within a species vary from one another in morphology, physiology, and behavior. Second, variation is in some part transmissible so that variant forms have offspring that ... .... What is Intelligent Design? Accessed 15 April 2015. http//www.arn.org/idfaq/whatisintelligentdesign.htmHimmelfarb, Gertrude. Darwin and the Darwinian Revolution. clean York Doubleday & Company Inc. , 1959 Lewontin, R. C. Darwin and Mendel-the Materialist Revolution. In Neyman (ed.) The Heritage of Copernicus. Cambridge MIT Press. 1974. Poirier, F.E. McKee, J.K. Understanding kind Evolution. Forth Edition. Upper Saddle River, NJ Prentice Hall. 1999Wilson, E.O. The Diversity of Life. New Edition. New York W.W. Norton & Company, Inc.1999Vorzimmer, Peter J. Charles Darwin The years of Controversy The Origin of Species and its Critics 1859-1882. Philadelphia Temple University Press. 1970Darwin, Charles Robert. Darwin, Francis, editor. The account of Charles Darwin and Selected Letters. New York Dover publications Inc. 1958.

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