How we dispose of our rubbish, choose the foods we buy, enjoy art, relate to our families, and think about ourselves are just a few of the ways that ideas about nature shape our everyday ethical decisions. Nature and 'natural facts' have long been used to make sense of why we act a certain way. Nature is a concept with great power: when we describe something as 'natural' or 'unnatural', it has a moral force and political consequences. We see this...