Inspired by underwater sand circles made by puffer fish, professionals from various fields explore the creativity of language employed by nonhuman creatures As a long-term research project and festival series within the context of Serpentine Galleries' General Ecology project, The Shape of a Circle in the Mind of a Fish is an edited collection that convenes a wide range of perspectives to consider how consciousness, intelligence and language are manifested and expressed across the earth's life forms. Interventions across the arts, humanities and science investigate the idea of "mind" across species and beings: inquiring upon animal, plant and fungal intelligence, consciousness and affects, machine sentience and interspecies communication. The publication includes new material by over 50 experts, including Marisol de la Cadena, Ted Chiang, Peter Gabriel, Amy Hollywood, Tim Ingold, Kapwani Kiwanga, Elizabeth A. Povinelli, Merlin Sheldrake and Anna Lowenhaupt Tsing.