Animal geographies has emerged over the last 15 years as a lively and provocative area of current human/non-human geographical research and scholarship. Yet, while the ‘animal turn’ has arguably impacted widely across a range of social sciences and the humanities, for ‘human’ geography it offers what is potentially a far more fundamental and profound reconfiguration of the discipline’s traditional ontological and epistemological reach, not least given the challenge that the ‘animal’ brings to the exclusivity of geography’s adjectival humanism. This article is the first of three reports on animal geographies. It sets out the development of the subdiscipline, from the mid-1990s onwards, and charts the emergence of what has become a distinctive and innovative field with increasing interdisciplinary connections.