1999, but not only 2007 did scientists apply to the fda for approval for these kinds of pigs to be eaten. but the original idea was not to create a bigger, tastier pig. why create a pig like this? >> to try to control and reduce the environmental footprints of pig farming around the world. by reducing the amount of phosphorous the pig produces. >> reporter: fphosphorous is a nutrient that helps the pig grow. farmers use that as fertilizer. when it rains, some runs off into the watershed, meaning it gets into rivers and lakes. too much phosphorous in a body of water can cause algae bloom that suck up all the oxygen and destroy habitats for fish and