Evolution Message Board - Msg: 26954695

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Politics : Evolution

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To: longnshort who wrote (9717)	11/11/2010 11:26:18 AM
From: Solon	Read Replies (1) of 69300

The statement "evolution is both a theory and a fact" is often seen in biological literature.[1][2][3][4][5][6][7] Evolution is a "theory" in the scientific sense of the term "theory"; it is an established scientific model that explains observations and makes predictions through mechanisms such as natural selection. When scientists say "evolution is a fact", they are using one of two meanings of the word "fact". One meaning is empirical: evolution can be observed through changes in allele frequencies or traits of a population over successive generations. Another way "fact" is used is to refer to a certain kind of theory, one that has been so powerful and productive for such a long time that it is universally accepted by scientists. When scientists say evolution is a fact in this sense, they mean it is a fact that all living organisms have descended from a common ancestor (or ancestral gene pool) [8] even though this cannot be directly observed. This implies more tangibly that it is a fact that humans share a common ancestor with other primates. en.wikipedia.org

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