For homesteading pioneers, far from cities and convenience stores, using every part of an animal was a necessity. Pigs filled a wide variety of needs for pioneers, beyond the obvious bacon and pork. Pig fat could be used for soap and other cleaners. Pig skin could be made into gloves. Pig bones could be ground up as natural fertilizer. Candles could be made using pig fat, and gelatin, a material with countless uses, could be made from pig skin, bone, and connective tissues. Even the internal organs had uses, as pig bladders could be filled to create a long-lasting ball. In this way, almost nothing was wasted.
Pigs are farmed commercially all across the globe in industrialized nations, and they live in the wild in many places, too. In many developing nations, pigs are raised in a more natural manner, living outdoors in open fields. In some cases, they are even watched over by shepherds.