Factory farms hold large numbers of animals, typically cows, pigs, turkeys, or chickens. More than 99% of farm animals nationwide are raised in factory farms. On today’s factory farms, animals are crammed by the thousands into filthy, windowless sheds and confined to wire cages, gestation crates, barren dirt lots, and other cruel confinement systems. They are deprived of exercise so that all their bodies’ energy goes toward producing flesh, eggs, or milk for human consumption, are fed drugs to fatten them and keep them alive in conditions that could otherwise kill them, and are genetically altered to grow faster or to produce much more milk or eggs than they naturally would. When they have finally grown large enough, animals raised for food are crowded onto trucks and transported over many miles through all weather extremes, typically without food or water, to the slaughterhouse.