RUNNING HEAD THEORY OF EVOLUTION BY NATURAL SELECTION

Darwin's theory of evolution by natural selection

Why Darwin's theory of evolution by natural selection is still 150 years after the origin of the idea of ??making such provocative.

1838, Darwin read a book called the principles of the Population, by the English analyst and economist Thomas Malthus (1776-1834) papers. Malthus pointed out that human being inhabitants growth will double every 25 years is selected. Such as food, air and water resources cannot be increased at the same rate, Malthusian argument. Therefore, intense human participation in the "struggle for existence" and the competition for limited resources. The idea that Darwin discovered the mechanism he needs.

Competition with other views of his ideas, Darwin explained the possible evolution. First, he pointed out that the variation between individuals of a species exists. Secondly, he pointed out, human resources, the lack of a new species, will result in the same competition between individuals, because all use Darwin's natural selection creates the same word to describe the process of limited resources, a constructive revolutionize and biological survival and A higher pace of reproduction. A genetic variation in a specific environment can increase the probability of endurance of organisms is described as adaptation. Numerous generations, an adaptation could extend to the entire species. In this way, according to Darwinian natural selection, evolution will occur.

The Origin of Species & Theory of natural selection

Discussion

Darwinian natural selection, the preparation of evidence took for about 20 years of evolution. Between 1842 and 1844, he wrote 230 articles a summary of his theory and evidence. 50 years in the 19th century, he began a detailed, multi-volume book on the work of his own theory in the scientific community.

However, the book Darwin's Origin of Species published in 1859 forever changed the biology. First printed book sold out in one day. Darwin's ideas clearly and logically, the mechanism of natural selection is evolution. His life in Darwin there are many scientists believe, evolved into the way of natural selection. Today, this theory is the unity of all living one.

After spending time on the island, he soon developed a theory, would be contrary to people creativity, meaning, derived from the common ancestor of all species, a process called natural selection. Natural selection is considered to be the biggest factor in the species and diversity of their genomes caused (Charles Darwin, 1901).

Darwin's work and the principles of his ...