Tarantulas can grow up to ten inches across. Monarch butterflies migrate from Canada to Mexico each year. Praying mantis females sometimes eat males during mating. Readers will find hundreds of eye-opening facts in this invaluable and accessible introduction to insects and spiders. Every major group of insects and arachnids -- from butterflies to beetles to scorpions -- is included, with full-color pictures, larger-than-life-size photos, and a concise and informative text. A must for libraries and science collections, as well as anyone with an interest in the most numerous and varied species on earth.