Human Origins & Philosophy

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Diego K


Date added:

February 19, 2012







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7 / 1796


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Mayr states that ?Each species is a delicately integrated genetic system that has been selected through many generations to fit into a definite niche in its environment.' Palaeontology, according to Darwin, accounted for the formation of any new species through a gradual transformation of the ancestral population with large numbers of individuals in the inhabited territory...
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Eldredge and Gould later named this process phyletic gradualism. This phyletic gradualism, however, continued the tradition of extrapolation from local populations and also used the accepted model for adaptive geographical variation, namely the gradual substitution of genes directed by natural selection, as a paradigm for the origin of species ...
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