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the doctrine that all living things are biological descendants of [[common ancestors]] that have been modified by [[unguided variations]] and [[natural selection]]
'''Darwinism''', "is the doctrine that all living things are biological descendants of [[common ancestors]] that have been modified by [[unguided variations]] and [[natural selection]]." [http://www.evolutionnews.org/2009/01/art_as_lust015681.html] It is named for the nineteenth-century English naturalist [[Charles Darwin]], holds who held that [[natural selection]] in combination with random [[mutation]] is the directive or creative force of [[evolution]].<ref>http://www.newworldencyclopedia.org/entry/Darwinism</ref>
The [[theory of natural selection]] is one of two major evolutionary theories advanced by Darwin, the other being the [[theory of descent with modification]].<ref>http://www.newworldencyclopedia.org/entry/Darwinism</ref>
