A compelling and innovative exploration of how animals shaped the field of natural history and its ecological afterlives. Can corals build worlds? Do rattlesnakes enchant? What is a raccoon, and what might it know? Animals and the questions they raised thwarted human efforts to master nature during the so-called Enlightenment—a historical moment when rigid classification pervaded the study of natural history, people traded in people, and imperial avarice wrapped its tentacles around the globe.