Description: "Predators come in all shapes and sizes. Wildlife photography is used to show various types of predators and explain the complex relationship between predator and prey. Students learn the difference between omnivores, carnivores, and herbivores, with examples shown of each. Factors that help maintain nature's balance, including disease and competition, are covered as well, helping students understand exactly how bears, lions, frogs, insects, sparrows-- even people-- play a role in maintaining nature's delicate balance." -WorldCat