Archaea are microorganisms often found living in very extreme conditions. They are known to survive in very hot environments, such as hydrothermal vents and hot springs. They can also live in very acidic habitats and even inside of animals. With the help of this engaging book, readers will develop a strong understanding of these fascinating organisms. Accessible, age-appropriate text helps readers of many levels learn important details related to elementary life science curricula. Meanwhile, colorful photographs reinforce key concepts and hold readers' attention.