Subramaniam reveals the histories of eugenics and genetics and their impact on the metaphorical understandings of difference and diversity that permeate common understandings of differences among people exist in contexts that seem distant from the so-called objective hard sciences. Journeying into interdisciplinary areas that range from the social history of plants to speculative fiction, Subramaniam uncovers key relationships between the life sciences, women's studies, evolutionary and invasive biology, and the history of ecology, and how ideas of diversity and difference emerged and persist in each field.