Get six incredible, full-length Weird but True! books in one out-of-this-world collector's mega-set, featuring all-new outrageous trivia and eye-popping photos in every book and all the fun you've come to expect from this wildly popular series. Fascinating information and lively art combine to make irresistible brain candy for young readers. Kids will have such a good time that they won't even realize they're learning! Did you know that "borborygmus" is the word for the rumbling sound in your stomach when you're hungry, or that some butterflies drink turtle tears? The creators of National Geographic Kids, the nation's most popular kids' magazine present the Weird but True! Collector's Mega-set. It's chock-full of 1,800 wacky, wild, mind-bending facts about everything on Earth and beyond, including animals, food, science, pop culture, outer space, geography, weather, and more! They will so wow family and friends that you won't be able to stop turning the pages of these brainteasing treats.