These trees shall be my books.And in their barks my thoughts I’ll character – As You Like It, Act 3, scene ii.Biosemiotics and Natural Constructivism.During the nineteenth century, the idea of a natural oikos, an economy of natural being and relationship, gave rise to the invention, by Ernst Haeckel in 1866, of the term “ecology.” Despite its evident emphasis on relationships over things, the dominance of materialism and determinism in the natural sciences, alongside the habitual assumptions of material reductionism as the most appropriate way of understanding ecological development, meant that the idea of relationship was defined in a rather constrained way. Similarly, the Modern Synthesis of Neo-Darwinism, which was developed in the 1930s and 1940s and sought to resolve the discoveries of Mendelian genetics with Darwinian natural selection, gave expression to a mechanistic and reductionist model of evolution. This was later supported by Francis Crick’s articulation, in 1958, of the unidirectionality of the Central Dogma’s evolutionary thesis: that genetic information flows one way only from DNA to protein. Together these two materialist and deterministic precepts attained the status of nearly unassailable truth. As the philosopher Thomas Nagel has noted, “Physico-chemical reductionism in biology is the orthodox view, and any resistance to it is regarded as not only scientifically but politically incorrect.” From the point of view of scientific discovery as an open and ongoing process, the dogmatism to which Nagel refers represents a rather parlous state of affairs.