Abstract

Robert Rosen’s relational biology and biosemiotics share the claim that life cannot be explained by the laws that apply to the inanimate world alone. In this paper, an integrated account of Rosen’s relational biology and Peirce’s semiosis is proposed. The ultimate goal is to contribute to the construction of a unified framework for the definition and study of life. The relational concepts of component and mapping, and the semiotic concepts of sign and triadic relation are discussed and compared, and a representation of semiotic relations with mappings is proposed. The role of the final cause in two theories that account for what differentiates living beings, natural selection and relational biology, is analyzed. Then the presence of the final cause in Peirce’s semiosis is discussed and, with it, the similarities and differences between the theories of Rosen and Peirce are deepened. Then, a definition of a semiotic relation in an organism is proposed, and Short’s definition of interpretation is applied. Finally, a method to identify and analyze semiotic actions in an organism is proposed.