In winter 2015, a door unexpectedly opened on a group of pigs. Where a moment before the room had been filled with the sound of grunts, squeals, and squeaks, the author and his wife were greeted by an expectant silence as sixty healthy-looking pigs turned toward the door, sat down on their behinds—and coughed. The surprisingly human sound of sixty coughing pigs has stayed with us to this day.…