One fat cat has found his way into some of history’s most famous pieces of art.Russian artist Svetlana Petrova is behind the series “Fat Cat Art,” which features her 22-pound cat Zarathustra in the hands of the Leondaro da Vinci’s "Mona Lisa," touching God’s finger in Michelangelo’s “The Creation of Adam,” and in dozens of other famous artworks. “He’s a very sensible and tende