Did you know that lemons can power lightbulbs, or that some goats climb trees? You'll find 300 more wacky facts like these in Weird but True 4!--the latest addition to the blockbuster National Geographic Kids Weird but True series. This fourth installment in the successful Weird but True series has all-new facts and illustrations, creative type treatments, and more cool photos. Brain-bending facts cover a broad range of topics, including science, animals, food, weather, pop culture, outer space, geography, and just about everything else under the sun.