Cows are large, four-legged animals with long tails and horns. They are usually kept on farms for their milk, meat and hides. Cows also produce manure which is used as fertilizer to help crops grow. Cows can be found in many different countries around the world, including India, China and the United States. Cows are herbivores, meaning they eat grass and other vegetation. They typically live in herds of 10 or more cows and are social animals that enjoy spending time with each other.