Studies of Christian worship understandably present churches as institutions that minister to human communities. The article shows that worship in the Church of England has a non-human history. Key developments between 1900 and 1950, notably war, the growth of pet-keeping and heightening concerns about the countryside, encouraged groups, inside and outside the Church, to push for rituals and liturgies that engaged with animals and animal issues in varied ways. The incorporation of animals in worship is an unappreciated aspect of broader changes in cultures of prayer, and an overlooked element in Anglican efforts to reconnect worship with the natural world.