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Kids love to read about things that are gross and bizarre, and we're sure to caption their attention with this intriguing collection of true case files that have baffled the scientific community. A fascinating combination of clinical facts and investigative research that considers all theories, no matter how strange. "National Geographic Investigates" introduces young people to cutting edge techniques of scientific investigation, the most current discoveries, and the way that those discoveries are interpreted to throw new light on our understanding of ourselves and the world around us. Special features include: map showing major sites discussed in the book, plus locator maps to start each chapter; sidebars explaining the latest technology being used by scientists; a 'Meet the Expert' sidebar presenting an interview with a scientist currently working in the appropriate field; timelines placing research and researchers in historical context and pinpointing the time period for each chapter; and, lavish design including photographs, illustrations, and diagrams.