The book considers biology in parallel with philosophical structuralism in order to argue that notions of form in the organism are analogous to similar ideas in structuralist philosophy and literary theory. This analogy is then used to shed light on debates among biological scientists from the turn of the 19th century to the present day, including Cuvier, Geoffroy Saint-Hilaire, Dawkins, Crick, Goodwin, Rosen and West-Eberhard. The book critiques the endorsement of genetic manipulation and bioengineering as keys to solving agricultural and environmental problems, suggesting that alternative models have been marginalized in the promotion of this discourse.  Drawing from the work of philosophers including Cassirer, Saussure, Jakobson and Foucault the book ultimately argues that methods based on agroecology, supported by molecular applications (such as marker-assisted selection, MAS), can both advance agricultural development and remain focused on the whole organism.