With inspections into more than 30 different tiny forms of life, this is a fascinating collection of all the gross and icky things that call the human body home. Featured organisms include the African eye worm, which reveals itself by squirming across your eyeball, and light-emitting bacteria that often grow around paper cuts. Packed with detailed technical drawings, comic illustrations, games, quizzes, and puzzles, this is the ultimate guide to the nastiest things that live inside you!