User blog comment:FoolishMortalFOOL/Awakened Zoan Origin Theory/@comment-122.109.57.223-20111008160806

Actually that is not the first time animals ate a devil fruit (if the four demon guards were really minotaurs) aside from chopper. The first one was Pierre, the Bird that Gan fall was riding in the Skypiea. Pierre ate the uma-uma no mi which transforms him into a horse ( or a pegasus).