Fins

... so worried about quite likely served another purposes before they were used in sexual reproduction, just like it often happens during evolution (fins were first used for swimming, later for crawling in the mud and finally for walking etc). At the moment my best guess is that they were specialist ...

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... Lophophore, no pedicle, ciliated tentacles about 5,000 living species Chaetognatha Longhair jaw Arrow worms Chitinous spines either side of head, fins about 100 modern species Chordata Cord Chordates Hollow dorsal nervous chord, notochord, pharyngeal slits, endostyle, post-anal tail about 100,000+ ...

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... is one of my greatest objections to evolution, the continual upward genetic drift by mutation. This would also in my mind bring deformities as fins turn to legs and other transitions and natural selection would eliminate it. It would not be able to survive. And why would it be upward when the ...

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... was sort of like a modern-day mangrove swamp, where movement through water was often restricted by dense tree roots. It's possible that sturdy fins, gradually evolving into primitive legs, would have been more efficient for "climbing" or "crawling" through the tree roots ...

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... formed features. A good example is the fish eusthenopteron and amphibian ichstyothega, claimed to be transitional forms. One has fully developed fins, one has fully developed legs. Because they have similar features in head and body, and I stress similar, they are suggested to be transitional ...

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