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Re: Back-evolution of limbs.

>Whales were land animals, their legs evolved back into flippers.

Back into flippers?? I hope you are not meaning back to the use of some
ancient ancestral traits of primordial fishes because that's an
evolutionary fallacy. Whales didn't revert to some ancestral fish
characteristic; their terrestrial ancestors adapted to the sea developing
little by little the best possible design: a design that has evolved
convergently many times and in many different species.

Luis Rey

Visit my website at http://www.ndirect.co.uk/~luisrey