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The world is full of stinky smells, such as sweaty feet, dirty diapers, rotting food, and wet dogs. Some smells are so bad, they can make a person gag or run in the opposite direction. In this book, readers will examine what causes bad smells, why some objects smell more than others, and how smells travel. They will also explore how the nose and brain detect and recognize different smells. With high-interest content and special features that include a Myths and Facts and 10 Great Questions to Ask a Specialist sidebars, this engrossing book will attract even hesitant readers.