Why would the dolphin evolve on land, then return to the sea?

Question: Why would the dolphin evolve on land, then return to the sea where it would have to re-evolve every feature that it had spent millions of years working on?

Response: It doesn't make any sense to me, either. There is no reason! The rationale is that their best food source was in the water (when they were land animals) and thus they spent so much time in the water they gradually adapted to it. However, please understand that the same people postulate this animal coming OUT of the water and adapting to land some aeons before... This would have been the case for each of the mammals in the seas. You might be interested in Ashby Camp's analysis of "whale evolution" here: http://www.trueorigin.org/whales.htm.  He's got several good analytical articles there on different "stages" in claimed evolution. Our option, of course, is simply to believe God's explanation of creation and to notice that we don't see any evidence of one sort of thing changing into another today. What evolution is doing is taking an idea that is non-testable and non-repeatable and declaring it fact by definition and imagination. Their "transitional fossils" are transitional in the eye of the beholder. What the facts tell us is that these are dead and gone animals. (You might also want to note that there are no "transitional" plant fossils claimed. Ginkos, palms, ferns -- they all stay the same in the fossil record.)