Tabla de Contenidos: “…Introduction: Reading beneath the Grain -- Rats, Witches, Miasma, and Early Modern Theories of Contagion -- Swarming Things: Dearth and the Plagues of Egypt in Wither and Cowley -- "Observe the Frog": Imperfect Creatures, Neuroanatomy, and the Problem of the Human -- Libertine Biopolitics: Dogs, Bitches, and Parasites in Shadwell, Rochester, and Gay -- What Happened to the Rats? Hoarding, Hunger, and Storage on Crusoe's Island -- Afterword: We Have Never Been Perfect…”