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Purpose: This paper reviews research developments in semiosis (sign activity) as theorized by Peirce, Eco and Sebeok, focusing specifically on the current study of "semiotic threshold zones," which range from the origins of life through various nonhuman life forms to artificial life forms, including those symbolic thresholds most familiar to library and information science (LIS) researchers. The intent is to illustrate potential opportunities for LIS research beyond its present boundaries. Design/methodology/approach: The paper provides a framework that describes six semiotic threshold zones (presemiotic, protosemiotic, phytosemiotic, zoosemiotic, symbolic and polysemiotic) and notable work being done by researchers in each. Findings: While semiotic researchers are still defining the continuum of semiotic thresholds, this focus on thresholds can provide a unifying framework for significance as human and nonhuman interpretations of a wide variety of signs accompanied by a better understanding of their relationships becomes more urgent in a rapidly changing global environment. Originality/value: Though a variety of semiotic-related topics have appeared in the LIS literature, semiotic thresholds and their potential relationships to LIS research have not been previously discussed there. LIS has traditionally tasked itself with the recording, dissemination and preservation of knowledge, and in a world that faces unprecedented environmental and global challenges for all species, the importance of these thresholds may well be considered as part of our professional obligations in potentially documenting and archiving the critical differences in semiosis that extend beyond purely human knowledge. [ABSTRACT FROM AUTHOR]

Purpose – The purpose of this paper is to examine the association between information and boundaries. Life depends on boundaries; but in order to survive an organism needs to make decisions based on an interpretation of the environment beyond its boundaries: it therefore needs information. Design/methodology/approach – The paper explores the evolution of physical, social and cultural boundaries and considers how they have shaped ways in which information is gathered and used. Findings – Several evolutionary developments are reviewed. The paper argues that each one has generated an additional boundary and that each new boundary has affected the information needs within it. The paper argues that all living things use information to help address three fundamental concerns: “Where can the energy needed to stay alive be found?”, “How can it be stored?”, and “How can use of energy be reduced?” Because these questions are fundamental at a biological level they are also fundamental at a societal level. One way to increase energy efficiency was for organisms to grow larger. This brought risks which were alleviated by the evolution of better information gathering and processing tools. Amongst these tools were the means to communicate, which afforded the evolution of social boundaries. Originality/value – This is a new perspective on a topic of growing interest in information science and demonstrates further the significance of information as a factor in the shaping of life. [ABSTRACT FROM AUTHOR]