Often called the “poor man’s cow,” goats can thrive in extreme climates and on poor, dry land by eating grass, leaves and even twigs. Most of the world’s people rely on them for milk! A dairy goat can supply a family with up to four quarts of nutritious milk a day—just about the right amount if you don’t have a refrigerator! Extra milk can be sold for income or be made into cheese, butter or yogurt.