From caged orangutans to roasted pig, from dog training to horse phobias, from communicating bees to ruminating cows, Derek Ryan explores how animals are encountered in theoretical discourse. Across four thematically organised chapters on 'Animals as Humans', 'Animal Ontology', 'Animal Life' and 'Animal Ethics' he offers extended discussions of Nietzsche, Freud, Lacan, Heidegger, Merleau-Ponty, Derrida, Deleuze, Singer, Nussbaum, Adams and Haraway among others, as well as lively readings of contemporary literary texts by Carter, Coetzee, Auster and Foer. Intended as a resource for researchers, students, teachers and all those interested in human-animal relationships, Animal Theory: A Critical Introduction provides an accessible and authoritative account of the challenges and potential in thinking about and with animals.