Introduction to evolution: Difference between revisions

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Darwin drew much of his support for natural selection from observing the outcomes of artificial selection.<ref>{{cite journal |author=Wilner A. |title=Darwin's artificial selection as an experiment.|journal=Stud Hist Philos Biol Biomed Sci.|volume=37 |issue=1 |pages=26&ndash;40|year=2006 |pmid=16473266 |accessdate=2008-01-24 }}</ref> Much of his book ''[[On the Origin of Species]]'' was based on his

observations of the diversity in domestic pigeons arising from artificial selection. Darwin proposed that if dramatic changes in domestic plants and animals could be achieved by humans in short periods, then natural selection, given millions of years, could produce the differences between living things today. ThereIn isnatural noselection, realthe differenceenvironment in'chooses' the geneticsurviving processesspecies. underlyingIn artificial andselection, naturalthe selectionhuman breeder or farmer chooses the surviving breed or variety. AsIn inboth natural and artificial selection, the variations are a result of random mutations;, the onlyunderlying differencegenetic isprocesses thatare inessentially artificialthe selectionsame, humansand selectsurvival whichis organisms will be allowed to breednon-random."<ref name= PBS/>

==Summary==