Why do we have eyebrows? Why are dogs' noses wet? Why does Earth have a moon? Why are some people color blind? The best-selling book in TIME For Kids' Big Book of Questions series is newly revised with updated information, photos, illustrations, and graphics to answer over 250 intriguing questions in popular subject areas: Animals, Space, History, Science, Technology, Sports and more. Presented in an easy-to-follow format, this fun, must-have reference. Perfect for ages 9 to 12.