Mary Roach is an author who specializes in popular science and humor. She has published nine books,: Stiff: The Curious Lives of Human Cadavers (2003), Spook: Science Tackles the Afterlife (2005) (published in some markets as Six Feet Over: Adventures in the Afterlife), Bonk: The Curious Coupling of Science and Sex (2008), Packing for Mars: The Curious Science of Life in the Void (2010), My Planet: Finding Humor in the Oddest Places, Gulp: Adventures on the Alimentary Canal (2013), Grunt: The Curious Science of Humans at War (2016), Fuzz: When Nature Breaks the Law (2021), and Replaceable You: Adventures in Human Anatomy (2025).