Why don't fish sink? Why can't penguins fly? Why do parrots talk? Jack Hanna's Big Book of Why takes kids and adults on a journey through the animal kingdom to answer these questions and hundreds more. The 176-page hardcover children's book is organized by habitat-deserts, grasslands, forests, rainforests, oceans and poles-and features close-up color photographs, amazing facts and interactive quizzes about creatures from around the world. Filled with science, history and humor, Jack Hanna's Big Book of Why is a must-have for animal-lovers and curious kids alike.