Chelsea holds a B.A. in History and Science from Harvard, where she wrote her thesis on psychopharmaceutical marketing, family, and citizenship in Cold War America. She also holds a certificate in Museum Studies from Northwestern. She has worked as a teaching assistant for undergraduate courses in medical sociology, evolutionary biology, and history of science; a Humanist community organizer; a science museum educator; and a cook at a feminist vegetarian restaurant-cum-bookstore. She works on the history of animals in science and medicine, with a particular interest in scientific understandings of animal welfare. Her current research project is on how American veterinary medicine changed in relation to the decline of horsepower as an energy source.