"Experts believe that the dolphin's ancestor was a dog-like creature which roamed the earth many millions of years ago. And now the extraordinary discovery of a bottlenosed dolphin with an extra set of flippers has provided living proof of the theory.Scientists have so far been unable to tell whether the four-finned dolphin, caught in fishermen's nets off Japan's Wakayama province a week ago, uses its extra set of fins when swimming."
(Image from Daily Mail)
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