Evolution Essay

1583 WordsApr 13, 20097 Pages
A Lesson in Evolution Evolution is the name of a theory that explains change in living organisms and variation within species. Evolution is a process in which the characteristics of living organisms change over many generations while traits are passed on from one generation to the next. Charles Darwin, who is considered the father of evolution, discovered the origin of the species and the process of ongoing history of life on earth (Perry, 2006). Long before the rise of modern science in Western Europe in the 17th and 18th centuries, a powerful view had come about that God created every organism on earth. But the study of natural history and fossils became popular, and in the connection with it, the beginnings of an evolutionary theory began to take shape. Early evolutionary theorists proposed that all of life on earth evolved gradually from simple organisms, but their knowledge of science was incomplete; therefore, their theories left too many questions unanswered. Most well-known scientists remain convinced that the variety of life on earth could only result from an act of divine creation (Lofton, 1997). As mentioned above, in the mid 19th century, Charles Darwin, a British scientist, founded the modern evolutionary theory with his concept that all forms of life evolve and change through the process of natural selection. His work was a major influence on the life and earth sciences and on modern thought in general. Darwin’s theory of evolution is divided into 5 different parts: natural selection, mutation, genetic drift, gene flow, and speciation (Barlow, 1994). Evolution 2 Natural selection is the process in which environmental effects lead to changing degrees of reproductive success among individuals of a population of organisms with different hereditary characters or traits. (Perry, 2006) Natural selection, in other words, is simply survival

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