What do animals know about death—and what can it teach us? Chimpanzees care for the sick and mourn their dead kin. Killer whales carry their dead babies with them for weeks, as if unable to come to terms with the loss. Elephants cover the corpses of their relatives with branches and earth, performing a primitive funeral rite. And the opossum, when threatened, feigns death: it becomes paralyzed, lowers its body temperature, sticks out its tongue, and emits a cadaverous odor. Like the cat in Schrödinger's paradox, it is simultaneously alive and dead. As the Spanish philosopher Susana Monceau demonstrates, animals not only have a concept of death: their relationship with it is far more varied and surprising than we might imagine. 'Schrödinger's Possum' is a natural science detective story that combines philosophical therapy with the latest findings from ethology and comparative psychology, and observations of wildlife with reflections on existential questions.