The Polar Book with CD now offers sounds. The polar bear hears a lion roaring, who hears a hippopotamus snorting, who hears a flamingo fluting(!), who hears a zebra braying, and so on through a varied list of animals. At last the zookeeper announces that he hears children roaring, snorting, fluting, etc. and each answer leads to the animal on the next page. It culminates with a zookeeper who “hears” a page full of multiracial children disguised as their favorite animals. Carle’s characteristically inventive, jewel-toned artwork forms a seamless succession of images that fairly leap off the pages, and educator Martin, ever tuned in to what children like best, has assembled a thoroughly rowdy menagerie including a fluting flamingo. While the format is very similar to the previous book, Carle’s trademark collages have never been more beautiful. Huge animals fill the double-page spreads, glowing with light-filled colors.