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'''Macroevolution''' is the theory that [[natural selection]] can, given enough time, lead to the creation of new [[clade]]s which are groups of organisms consisting of a single common ancestor and all the descendants of that ancestor. Macroevolution also requires a large number of beneficial mutations. The scientific data regarding mutations causing the significant changes necessary for macroevolution is extremely damaging to the macroevolutionary position.<ref>http://www.answersingenesis.org/home/area/faq/mutations.asp</ref> <ref>http://www.trueorigin.org/mutations01.asp</ref>
'''Macroevolution''' is the theory that [[natural selection]] can, given enough time, lead to the creation of new [[clade]]s which are groups of organisms consisting of a single common ancestor and all the descendants of that ancestor. Macroevolution also requires a large number of beneficial mutations. The scientific data regarding mutations causing the significant changes necessary for macroevolution is extremely damaging to the macroevolutionary position.<ref>http://www.answersingenesis.org/home/area/faq/mutations.asp</ref> <ref>http://www.trueorigin.org/mutations01.asp</ref>
In spite of these apparent hurdles, scientists have been able to document cases in which species have undergone significant behavioral and biological adaptations in very short time periods (less than 40 years).<ref>http://news.nationalgeographic.com/news/2008/04/080421-lizard-evolution.html</ref>
==See also==
==See also==