Robert Ripley explored more than 190 countries seeking the bizarre. WORLD¹S WEIRDEST CRITTERS is packed with wild and wacky animal facts from Ripley¹s updated collection. Readers can also test their own critter smarts by taking the ³Who am I?² quizzes and Ripley¹s ³Brain Busters² along the way, to discover the amazing things some animals will do.