“There are fast chewers and slow chewers, long chewers and short chewers, right-chewing people and left-chewing people. Some of us chew straight up and down, and others chew side-to-side, like cows. Your oral processing habits are a physiological fingerprint.”

American author of popular science and humor

Mary Roach is an American author of popular science and humor. She is known for writing bestselling books that turn science into accessible, often playful nonfiction. 138 quotes on the site. Her books include Stiff, Spook, Bonk, Packing for Mars, Gulp, Grunt, Fuzz, and Replaceable You, all New York Times bestsellers. Her work often explores unusual corners of science, from human cadavers and the afterlife to sex, space, digestion, war, nature, and anatomy.