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. This installment 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.