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Examination of the remains of Golduck and Psyduck remains from as recently as a few thousand years ago demonstrate conclusively that it did not always suffer headaches and their resultant psychic abilities. Therefore scientists have concluded that these Pokemon have undergone a relatively recent mutation which has given them the beginnings of true secondary psychic typing. How much longer this will take or if some extra stimuli or element is needed to complete the evolution is hotly debated.
