From Fin to Limb?

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For those who study the theory of evolution. How do you think the transition from fin to limb happened? And below is a small quote of an article that was emailed to me. I did not post the entire article as I do not know the original source. What are your theories as to how the transition from Fin to Limb happened? - DNatureofDTrain -------------------------------- "Study shows primitive fish had genetic wiring for limbs By Will Dunham Wed May 23, 7:45 PM ET WASHINGTON (Reuters) - Primitive fish already may have possessed the genetic wiring needed to grow hands and feet well before the appearance of the first animals with limbs roughly 365 million years ago, scientists said on Wednesday. University of Chicago researchers were seeking clues behind a momentous milestone in the evolution of life on Earth -- when four-legged amphibians that descended from fish first colonized dry land. These first amphibians paved the way for reptiles, birds and mammals, including people."