Every day, we are confronted with innumerable small mysteries that puzzle and confound. Why do pianos have 88 keys? Why is peanut butter sticky? And do elephants jump? Now David Feldman returns with his tenth Imponderables® book to answer these and 100 other perplexing questions about food, popular culture, the human body, science, and more. Like the other books in the Imponderables® series, Do Elephants Jump? answers questions sent in by Dave's vast, and inquisitive, readership. For the painstakingly researched answers, Dave turns to his national network of experts in everything from fishing to astronomy to plastics, not to mention his millions and millions of readers who are eager to supply him with tidbits about even the most obscure phenomena. And since it's presented with Dave's trademark humor, you will be learning and laughing in equal measure.This tenth book in the series is complete with an indispensable master index to all ten of the Imponderables® books, and charming illustrations by longtime collaborator Kassie Schwan. With well over two million copies of Imponderables® in print, Do Elephants Jump? is sure to be the biggest hit yet. Join Dave Feldman as he strikes another blow against Imponderability.