With "Danger!," young readers will tour the adrenaline-filled worlds of animals, nature, space, science, the human body, and more. Discover animals armed with sharp claws and killer jaws, deep-sea monsters, poisonous plants, and frogs falling from the sky, not to mention some of the world's most accident-prone humans and the most dangerous mathematical formula in history. An encyclopedia like no other, this guide will captivate kids of all ages as they explore the dangerously exciting world around them. Supports the Common Core State Standards.