"The newest volume in the beloved Science of Why series-full of fascinating science that will amuse and astonish readers of all ages. Have you wondered why you cringe when fingernails are scratched along a chalkboard? Or whether you could ever have a cybernetic limb? Or if a shark can smell a drop of blood a mile away? Then you're in luck! Bestselling author Jay Ingram is back to answer all those questions and more as he explores and explains the world around us in all of its head-scratching curiosity. From the smallest parts inside us to the biggest questions about our universe, Jay tackles pressing topics, such as: Could we use a laser to shoot an asteroid that was about to hit earth? What exactly was a dodo and why did it go extinct? Why do beans make me fart? Touching on everything from food to robots to space to the animal kingdom, The Science of Why 3 is perfect for anyone who has stayed up late into the night pondering the weird and wonderful world we live in. Full of captivating science questions (and answers!), this book is sure to surprise and delight science readers of all ages."--From publisher.