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'''Natural selection''' is a principle first observed by [[Charles Darwin]] and Alfred Russel Wallace.

'''Natural selection''' is the mechanism in which members of a population exhibiting a specific phenotype that have a reproductive advantage over other members of the population based on the current selection pressures produce more viable offspring giving the next generation a higher percentage of the "favorable" phenotype. This principle was first observed by [[Charles Darwin]] and Alfred Russel Wallace, who noted that organisms which were better adapted to their environment tended to survive longer and reproduce more than less well-adapted organisms. They predicted that over time favorable traits which are inheritable would become more common.  

They noted that organisms which were better adapted to their environment tended to survive longer and reproduce more than less well-adapted organisms.  

They predicted that over time favorable traits which are inheritable would become more common.  

According to the [[theory of evolution]], it is through a combination of natural selection and [[mutation]] that biological complexity and adaptation arise from earlier generations of life. This view is disputed by advocates of [[Intelligent Design]]. See also [[Creationism]].   

According to the [[theory of evolution]], it is through a combination of natural selection and [[mutation]] that biological complexity and adaptation arise from earlier generations of life. This view is disputed by advocates of [[Intelligent Design]]. See also [[Creationism]].