In this special edition, ANTIQUES ROADSHOW revisits the most memorable animal-themed antiques and collectibles showcased on ROADSHOW over the years. Some of the warm and fuzzy discoveries include a 19th-century Charles van den Eycken painting of cavorting kittens - an ode to the "inner wild thing" - appraised for $15,000 to $25,000. Among the more dramatic beasts of prey is a late-period bronze Egyptian falcon mummy sarcophagus worth between $12,000 and $ 18,000. And in the category of creatures of the imagination is a sculpture depicting the elusive "kangaroo bird" as dreamed up and sculpted by the legendary Dr. Seuss in the 1930s, authenticated in a letter from Seuss himself and valued at $25,000.