In this dazzling essay, Anna Krien investigates the world we have made and the complexity of the choices we face. From pets to the live cattle trade, from apex predators to scientific experiments, Krien shows how we should – and do – treat our fellow creatures. As she delves deeper, she finds that animals can trigger primal emotions in us, which we are often unwilling to acknowledge. This is a clear-eyed meditation on humanity and animality, us and them, that brings out the importance of animals in an unforgettable way.