Bet you didn't know : fascinating, far-out, fun-tastic facts!

"Did you know that the first stop signs were black and white? Or that a litter of kittens is called a kindle? There's a lot to know and we bet you'll have fun learning these fun, far-out facts in the next super series from National Geographic Kids! Based on a favorite department in Nat Geo Kids magazine, this book is chock-full of fascinating facts, silly stats, and catchy little knowledge nuggets in all kinds of cool categories, from astronomy a...