Theories Explaining Biological Evolution

10042 words - 41 pages

Intro Sample...

Theories explaining biological evolution have been bandied about since the ancient Greeks, but it was not until the Enlightment of the 18th century that widespread acceptance and development of this theory emerged. In the mid 19th century english naturalist Charles Darwin - who has been called the "father of evolution" - conceived of the most comprehensive findings about organic evolution ever1. Today many of his principles still entail modern interpretation of evolution. I've assessed and interpreted the basis of Darwin's theories on evolution, incorporating a number of other factors concerning evolutionary theory in the process. Criticism of Darwin's conclusions abounds somewhat more than has been paid tribute to, however... View More »

Body Sample...

Their findings basically stated that populations of organisms and individuals of a species were varied: some individuals were more capable of obtaining mates, food and other means of sustenance, consequently producing more offspring than less capable individuals. Their offspring would retain some of these characteristics, hence a disproportionate representation of successive individuals in future generations. Therefore future generations would tend have those characteristics of more accommodating individuals8. This is the basis of Darwin's theory of natural selection: those individuals incapable of adapting to change are eliminated in future generations, "selected against". Darwin observed that animals tended to produce more offspring than were necessary to replace themselves, leading to the logical conclusion that eventually the earth would no longer be able to support an expanding population. As a result of increasing population however, war, famine and pestilence also increase proportionately, generally maintaining comparatively stable population9. Twelve years later, Darwin published a two-volume work entitled The Descent of Man, applying his basic theory to like comparison between the evolutionary nature of man and animals and how this related to socio-political development man and his perception of life. "It is through the blind and aimless progress of natural selection that man has advance to his present level in love, memory, attention, curiosity, imitation, reason, etc. as well as progress in "knowledge morals and religion"10. Here is where originated ...

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