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Originally Posted by redforever
There has been no proof to date that evolution has ever crossed species. In other words, that a fish became a bird or whatover.
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Speciation is a logical result of evolution. There would be no 'proof' because we don't have the luxury of making observations over the requisite millenia.
To me, what this article seems to do is lend some credence to Stephen Jay Gould's theory of punctuated equilibrium that speciation can occur more rapidly than neodarwinistic gradualism would suggest.