We argue that constructive approaches in epistemology and systems science, which are focused on normativity, knowledge, and communication of organisms and emphasize the primacy of activity, self-construction, and niche-construction in the cognitive agents, fit naturally to the both methodology and theory of biosemiotics. In particular, constructive view was already present in the works of the major precursors of biosemiotics: von Uexküll and Bateson, and to some extent Peirce. Biosemiotics has a chance to function as a mediating field in the theoretical (...) integration of semiotics with its construction-related sister disciplines (e.g., second order cybernetics, autopoiesis, constructivism, enactivism, and interactivism) because of its explicit assumption of the semiotic nature of life and agency and its objectified “first person” view to biosemiotic agents, the view that nevertheless avoids the agnostic attitude towards reality. (shrink)