Herbivores are animals that primarily eat plants, including leaves, fruits, seeds, and roots. They have specialized teeth and digestive systems that help them break down tough plant materials. Common examples of herbivores include cows, deer, and elephants. These animals play a crucial role in ecosystems by helping to control plant growth and providing food for carnivores and omnivores. Herbivores can be found in various habitats, from forests to grasslands, and they often have adaptations, such as long necks or strong jaws, to help them access different types of vegetation.