Herbivores are animals that primarily consume plant-based diets, including leaves, fruits, and vegetables. They play a crucial role in ecosystems by helping to maintain plant populations and serving as prey for carnivores. Common examples of herbivores include deer, cows, and elephants. These animals have evolved various adaptations to efficiently digest plant material, such as specialized teeth for grinding and fermentation chambers in their stomachs. Herbivores can be found in diverse habitats, from grasslands to forests, and they contribute significantly to the balance of their ecosystems.