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Parallel evolution


Parallel evolution can be distinguished from convergent evolution and evolutionary relay. In convergent evolution, unrelated lineages acquire similar characteristics (bird and bat wings).
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Parallel evolution is a different phenomenon than convergent evolution and evolutionary relay. In convergent evolution, independent organisms acquire similar characteristics through their evolution in different habitats (bird and fly wings).
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parallel evolution The development of similar characteristics in organisms that are not closely related (not part of a monophyletic group) due to adaptation to similar environments and/or strategies of life.
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The essence, I think, of our current understanding of human evolution is that we should begin to look at some of these parallel groupings as cases of parallel evolution.
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Similar selective pressures in these environments result in parallel evolution among the traits that confer reproductive isolation. There is some experimental evidence that this might occur (Kilias, et al. 1980; Dodd 1989).
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