微生物生态学复习（生物符号学作为生物学的另一种范式）

微生物生态学复习（生物符号学作为生物学的另一种范式）摘要：生物符号学致力于研究自然中的符号过程、意义、信息与交流。生物符号学作为范式转换，将生命过程看作是意义产生过程、信息过程，而不仅仅是机械过程。根据生物符号学，生命过程在符号框架内可以被丰富地解释。生物符号学产生于达尔文生物学的两个反常。这两个反常可能会导致生物当前的主流范式走向危机。面对这个危机，生物符号学提出了符号学的回应。生物符号学利用皮尔斯符号学通过重新定义生物学的事实、问题与方法，重新概念化了生物学。一些迹象表明，生物符号学已经进入了常规科学的阶段。然而，要想进一步发展，它必须面对内部、外部的挑战。周理乾Abstract: Biosemiotics is dedicated to studying semiosis meaning information and communication in nature. As a paradigm shift it treats

Biosemiotics as an Alternative Paradigm for Biology: A rational reconstruction of the history of biosemiotics

zhou Liqian

本文刊载自《符号与传媒》第17辑

（2018年秋季号第59-76页）

Abstract: Biosemiotics is dedicated to studying semiosis meaning information and communication in nature. As a paradigm shift it treats life processes as meaning-making informational processes rather than mechanical ones. It believes that life processes can be fruitfully explained within semiotic framework. It arose from two anomalies implied by neo-Darwinian biology. The anomalies may lead the current predominant paradigm of biology to crisis. Biosemiotics proposed a semiotic response to the crisis. With Peircean semiotics biosemiotics re-conceptualises biology through redefining facts problems and methods of biology. There are indications that biosemiotics has turned to the phase of normal science. However it must overcome both internal and external challenges to prosper further.

Keywords: biosemiotics semiosis neo-Darwinian biology paradigm

生物符号学作为生物学的另一种范式——生物符号学史的理性建构

周理乾

摘要：生物符号学致力于研究自然中的符号过程、意义、信息与交流。生物符号学作为范式转换，将生命过程看作是意义产生过程、信息过程，而不仅仅是机械过程。根据生物符号学，生命过程在符号框架内可以被丰富地解释。生物符号学产生于达尔文生物学的两个反常。这两个反常可能会导致生物当前的主流范式走向危机。面对这个危机，生物符号学提出了符号学的回应。生物符号学利用皮尔斯符号学通过重新定义生物学的事实、问题与方法，重新概念化了生物学。一些迹象表明，生物符号学已经进入了常规科学的阶段。然而，要想进一步发展，它必须面对内部、外部的挑战。

关键词：生物符号学；符号过程；新达尔文生物学；范式

The biosemiotic community strongly believes that biosemiotics can provide a paradigm for biology. From its inception early biosemiotians have interpreted the semiotic perspective on science represented by biosemiotics as “a radical shift in scientific paradigm” (Anderson et al. 1984) a notion that has been passed from generation to generation. In addition the history of biosemiotics has been rewritten several times (Kull 1999; Sebeok 2001; Favareau 2007; Kull Emmeche & Favareau 2008; Barbieri 2009 to name but a few). Then why do we still need a study on biosemiotics as a paradigm for biology and a rational reconstruction of history? Although most studies argue that biosemiotics can be a paradigm for biology this study examines whether biosemiotics has become a paradigm or the phrase of normal science. In other words my research analyses whether biosemiotics is mature. To this end I use Thomas Kuhn’s theory of scientific revolution (1962/2012) with Imre Lakatos’s reformulation to evaluate the current state of biosemiotics.

In this study I first discuss the concept of paradigm according to Kuhn. Next I argue that two anomalies implied by neo-Darwinian biology may lead to the crisis of the predominant paradigm of biology and examine the semiotic response to the crisis proposed by biosemioticians. In Peircean semiotics biosemiotics reconceptualises biology by redefining its facts problems and methods. Several clues indicate that biosemiotics has almost become a paradigm for biology. However it still faces internal and external challenges.

Ⅰ. The structure of paradigm

In Kuhn’s philosophy of science it is well known that the concept of paradigm is a polysemous concept. In an often cited but rarely read paper Margaret Masterman lists the 21 meanings of paradigm used by Kuhn in The Structure of Scientific Revolution (Masterman 1970). This source provides a good starting point for better understanding the concept of paradigm. One reason why this concept is considered unclear is that Kuhn’s numerous uses are more descriptive and empirical than conceptual and normative. Fortunately Lakatos (1968) reformulates the concept of paradigm as a research programme with a clear normative structure. Instead of discussing which account is best suited to the philosophy of science I propose that they provide two sets of valuable descriptive and normative criteria for assessing whether a science is mature. These criteria are as follows.

Kuhn’s account of paradigm and normal science is the most relevant here. To a certain extent these two terms are synonymous. Only when a science acquires a paradigm can we say that it has reached the state of normal science. A paradigm refers to past achievements in a scientific field that can be used as an exemplar for future scientists in the field. Descriptively a paradigm denotes achievements that are:

a. “sufficiently unprecedented to attract an enduring group of adherents away from competing mode of scientific activity”;

b. “sufficiently open-ended to leave all sorts of problems for the redefined group of practitioners to resolve” (Kuhn 1962/2012 p. 11).

In other words a paradigm guides and restricts the group referred to as the scientific community on how to practice science. How does it work? When they accept these achievements as exemplars for their own research scientists follow a network of commitments based on the paradigm although they do not need to be aware of these commitments.

This network consists of sets of metaphysical methodological conceptual theoretical and instrumental commitments (Kuhn 1962/2012 p. 42). The highest level of commitment determines what scientists must do. This is called the spirit of scientists. Metaphysical commitments describe the world as it is. These commitments are also referred to as the worldview. Methodological commitments denote ultimate laws and fundamental explanations. Theoretical and conceptual commitments refer to the theories and concepts that must be followed in a sustainable manner in future studies. Finally instrumental commitments define the instruments and how to use them.

In short the network of commitments determines significant phenomena (facts) how to identify problems how to collect and explain data (methods) and defines the legitimate theories and concepts. In Kuhn’s words the network of commitments describes “On what aspects of nature do scientists report? What determines their choice?… [W]hat motivates the scientists to pursue that choice to a conclusion?” In short it defines the activities of normal science: it actualises the promise of success of a paradigm by “extending the knowledge of those facts that the paradigm displays as particularly revealing by increasing the extent of the match between those facts and the paradigm’s prediction and by further articulation of the paradigm itself” (Kuhn 1962/2012 p. 24). To articulate a paradigm from a theoretical perspective the activities of normal science involve the prediction of new facts and the clarified reformulation of theories. Experimentally and observationally the activities of normal science refer to the discovery of significant facts and the matching of facts with theories and experiments.

The descriptive and empirical criteria of a paradigm proposed by Kuhn can be complemented by Lakatos’ account of a conceptual and normative scientific research programme (1968). Consistent with Kuhn Lakatos argues that science does not designate isolated individual theories but a network of interconnected theories which he calls “scientific research progamme”. “The programme consists of methodological rules: some tell us what paths of research to avoid (negative heuristic) and others what paths to pursue (positive heuristic)” (Lakatos 1970/1978 p. 47). Lakatos’ programme is characterised by its “hardcore”. In other words the hardcore defines a programme. Lakatos’ hardcore corresponds to the metaphysical methodological and sometimes theoretical and conceptual commitments of Kuhn’s theory:

The negative heuristic specifies the “hardcore” of the programme which is “irrefutable” by the methodological decision of its proponents; the positive heuristic consists of a partially articulated set of suggestions or hints on how to change develop the “refutable variants” of research-programme (1970/1978 p. 50).

The negative heuristic equates to the theoretical activity of clarifying a paradigm through reformulation while the positive heuristic consists of theoretical conceptual and instrumental commitments and other research activities. The positive heuristic sets up a series of problem-solving mechanisms often in the form of complicated models simulating reality.

Using these two sets of criteria we can now examine biosemiotics.

Ⅱ. Anomalies and the crisis of neo-Darwinian biology

The first question asked by those who are not familiar with biosemiotics is often “Why do we need another paradigm for biology when we already have neo-Darwinian biology?” The main answer is that there are anomalies in neo-Darwinian biology that may lead to crisis.

Neo-Darwinian biology the predominant paradigm of today’s life science refers to the modern synthetic theory of biology. In this modern synthesis Darwin’s theory of natural selection is combined with Mendelian genetics. Basically the paradigm has three essential factors: (i) natural variation of genes (ii) differential reproduction and (iii) inheritance (Brian 2010 p. 50). According to this paradigm most characters of organisms are affected by many genes which all have small effects. Natural variations of genes are produced by the random mutation of old genes and are heritable. The survival or fitness values of these variations differ thus differential reproduction happens when variations with different survival values pass from one generation to the next. Variations with higher values will produce more offspring. In short the environment in which organisms live selects characters that give them a reproductive advantage leading to the evolution of species.

Natural selection is a wholly mechanistic process. Therefore it can be completely mathematised. In this way the teleological properties of organisms that are incompatible with modern science are eliminated. Because of this mechanisation biology has become a science. However teleological concepts such as function adaptation design and information are essential in biology. Generally biologists treat these concepts as metaphors or abbreviations of phenomena that can be explained by mechanistic causality. Therefore in the paradigm organisms are passively subject to the universal laws of nature like other physical entities (Hoffmeyer 2008). Hence according to the paradigm life is lifeless. Although neo-Darwinian biology is scientific in a mechanistic sense it is counter-intuitive as organisms’ actions are teleological and have agency. Therefore neo-Darwinian biology necessarily involves dualism: it explains the part that can be mechanised but leaves the teleological part behind or simply assumes that this part can be mechanically explained which it cannot. Put differently nature violates the induced explanations of neo-Darwinian biology that govern the normal science of biology. Kuhn calls this violation an “anomaly”.

However advocates of neo-Darwinian biology argue that the goal-directed phenomena in organisms are pseudo-purposeful. For instance Ernst Mayr convincingly contends that we fundamentally mix different phenomena when using the concept of teleology (1992/2004 pp. 48-49). Teleonomic processes are one of the five phenomena concerned here. Teleonomic processes refer to goal-directed processes in organisms. Usually these processes are believed to result from an agency or intrinsic purposeful drive. In contrast Mayr argues that teleonomic processes involve goal-directed processes but they are not caused by some sort of agency. Instead they are caused by genetic programmes which are the products of natural selection. These programmes control the processes leading to a goal. The negative process of cybernetics is an excellent exemplar showing how goal-seeking behaviour can be achieved mechanically without an agency. Consequently Mayr proposes that the goal-directed processes of organisms can be explained by universal physical laws and genetic programmes without the involvement of agency. In this way the goal-directed processes of organisms are reduced to information processing which is mechanistic.

Conversely Terrence Deacon rejects this idea proposing that this argument “inverts the location of agency and dynamics” (2012 p. 132). He contends that the mechanism involved in information processing is necessary to explain goal-directed processes because of its contribution to something else (Deacon 2012 p. 123). In other words teleonomy cannot explain the purposes of organisms. Therefore the anomaly of neo-Darwinian biology is not eliminated. We want an account of life that can explain life especially the properties that differentiate living organisms from inanimate things while neo-Darwinian biology only provides an account without life (Emmeche 1998). This may lead to a crisis of the paradigm.

Ⅲ. Biosemiotics as a semiotic response to the crisis

According to Kuhn a paradigm supplants a previous one because it can better “solv[e] a few problems that the group of practitioners has come to recognize as cute” (1962/2012 p. 24). As a result biosemiotics proposes a semiotic response to the anomaly that neo-Darwinian biology cannot solve. Biosemiotics seeks to explain the phenomena left unexplained by neo-Darwinian biology from the perspective of semiotics namely a living or meaning-making aspect of life. After decades of hard work by generations of biosemiotians biosemiotics has become a paradigm. In the next section I justify this claim based on the two sets of criteria proposed in section

The ontological and metaphysical commitments or hardcore of biosemiotics are as follows:

a. Life and semiosis are coextensive according to Sebeok’s thesis;

b. Biology calls for a natural history of meaning (Stjernfelt 2002; Kull et al. 2008; Barbieri 2008; Kull Emmeche & Hoffmeyer 2011; Sharov Maran & Tønnessen 2015).

Sebeok’s thesis (Thesis 1) proposes two claims: a) by nature life processes are meaning-making informational processes namely semiosis (sign processes) and b) there is no semiosis without life. Claim (a) is in conflict with neo-Darwinian biology which does not take meaning-making but morphological metabolic evolutionary and other material and structural properties as essential characters of life (Bedau & Cleland 2010 Part IV). Claim (b) argues against pansemiotics that the universe is infused with signs and that everything is semiological in nature (Brier 2008a p. 357). According to biosemiotics “[s]emiosis is what distinguishes all that is animate from lifeless” (Sebeok 1988 p. 1089).

Semiosis is a fundamental process that carries meaning and in which meaning is created:

It is the process — not at all simple — that mediates purpose and causality living and dead aspects of nature and makes it possible to see how to overcome a crude dualism of mind and matter as well as how the dynamics of the actions of signs provides a better approach to living systems than our dichotomies of mental versus physical properties (Kull et al. 2009 p. 2).

Thesis 2 asserts that meaning which is considered normative has a natural origin and thus requires a naturalistic explanation. In traditional research meaning is a subject of the humanities and is excluded from natural science on the basis of Cartesian dualism. Therefore Thesis 2 is in conflict with The Two Cultures thesis. Bridging the gap between two cultures namely the humanities and natural science is one of the aims of biosemiotics (Anderson et al. 1984; Barbieri 2007 p. xi; Sharov et al. 2015; Cobley 2017 p. xii). Or in Hoffmeyer’s words biosemiotics seeks to explore “How could natural history become cultural history?” (1996 p. viii). In addition biosemiotics opposes intelligent design and creationism. The origin of meaning is not mysterious but a natural phenomenon. Therefore its explanation does not need to appeal to a supernatural agency (Barbieri 2009).

Based on the negative heuristic many studies seek to distinguish biosemiotics from other accounts of biology such as mechanism vitalism and organicism (Stjernfelt 2002; Kull et al. 2008; Kull et al. 2009; Emmeche & Kull 2011 to name but a few). Using the specificities of biosemiotics biosemioticians resolve attacks on the hardcore.

According to Kuhn a revolution of science corresponds to changes in the worldview. Indeed scientists live in a different world in which they adopt new instruments and look in new places. They can also find different and new things when examining previously studied places (Kuhn 1962/2012 p. 111). It should be noted that the rise of biosemiotics as a scientific revolution in biology (Favareau 2007 p. 50) does not add a semiotic or meaningful dimension to neo-Darwinian biology but replaces it with a new paradigm. Therefore biosemiotics provides a new worldview that differs from that of neo-Darwinian biology. In biosemiotics we see life through “the perspective of sign actions processes purposefulness interpretation and generality” (Emmeche 2011 p. 94). Compared with the mechanistic world of life described by neo-Darwinian biology the living world studied by biosemiotics is meaningful and qualitative. “To recapitulate the biosemiotics notion of life is a notion of a complex web of sign and interpretation processes typically with the single cell seen as the simplest possible autonomous semiotic system” (Emmeche 2011 p. 96).

These two theses also emphasise the methodology of biosemiotics: a methodology that studies signs. There are two types of signs: Ferdinand de Saussure’s semiology and Charles Sanders Peirce’s semiotics. The basic model of semiology is a dyadic model composed of signified and signifier. Using semiology Saussure studies language in a functionalistic way. In contrast Peircean semiotics proposes a triadic model of semiosis. Based on this model semiosis is a triadic relationship between three necessarily irreducible elements: sign object and interpretant. In light of these two theses biosemiotics adopts Peircean semiotics for the following reasons: a) semiology focuses solely on language arguing that only linguistic signs are signs which goes against Sebeok’s thesis; b) semiology is considered an instrument for normative cultural science that differs from causative natural science (Cassirer 1942) [Reference missing in the bibliography.] which is incompatible with Thesis 2 (Brier 2008b); c) Peircean semiotics is not only compatible with these two theses but also provides rich methodological and metaphysical resources for biosemiotics (Vehkavaara 2007).

Jacob von Uexküll’s theory of Umwelt proposes a more specific model simulating semiosis in the living world (von Uexküll 1940/1982). [Reference missing in the bibliography.] Umwelt is a meaningful subjective world centered on an organism in which everything has significance for this organism. Through functional circle a neutral object becomes a meaning-carrier for an organism. Peircean semiotics integrates the theory of Umwelt into the positive heuristic of biosemiotics. With negative and positive heuristics biosemiotics as normal science accomplishes the following activities:

Since its inception one of the most important theoretical activities of biosemiotics has been to classify biosemiotics by reformulating biology. Legitimate questions of biosemiotics are defined accordingly (Kull et al. 2008). The first set of questions addresses the essential distinction between life and inanimate processes. Conceptually it examines how to understand the distinction? Empirically it explores how semiosis emerged from non-semiotic processes? In short this set of questions reflects the problem of the origin of life formulated in terms of semiotics. Biosemiotians argue that there is a semiotic threshold between life and lifeless processes. Deacon proposes a significant model of the origin of organism autogenesis (2012). The second set of questions includes how to formulate evolution in semiotics how to understand selection function adaptation and genetic information how human language evolved from basic signs (symbolic threshold?) etc. Hoffmeyer’s theory of semiotic scaffolding is one of the remarkable theories of evolution in biosemiotics (2007). This theory suggests that the evolution of the complexity of organisms increases in parallel with the semiotic freedom of organisms. This theory takes into account the agency and active role of individual organisms in evolution.

Biosemiotics also reformulates biology synchronically. This set of questions includes the analysis of the relation between semiosis and physical processes what the basic unit of semiosis is how an organism interacts with its local environment through semiosis how to understand semiosis inside an organism etc. The first question is not a problem for neo-Darwinian biology but it is crucial for biosemiotics. Most biosemiotians accept Howard Pattee’s idea that the complementarity principle can bridge the epistemic cut between semiosis and physics (Pattee & Rączaszek-Leonardi 2012). Instead of living in a physical meaningless world enslaved by causal laws biosemiotics proposes that an organism lives in a meaningful subjective world called Umwelt in which the organism is the centre and everything has some value for it. Through functional circle a neutral object becomes a meaning-carrier for an organism. As an organism interacts (to a certain extent) with the local environment it lives in through semiosis the local environment becomes a semiotic niche. Different organisms interact with each other through semiosis constituting a consensual domain. Generally they construct a semiosphere that is as important as the atmosphere the hydrosphere and so on. Accordingly the branches of biosemiotics include endosemiotics phytosemiotics zoosemiotics ecosemiotics among others (Queiroz Emmeche Kull & El-Hani 2011).

The reformulation of biological theories is often accompanied by the identification of significant biological facts and the reinterpretation of facts previously explained by neo-Darwinian biology. Based on its ontological commitments the optimal phenomena that biosemiotics can explain are semioses or phenomena that can be formulated as semioses. For instance genetic information signals at different levels of organisms such as signals in the immune system nervous system or animal communication system codes and messages are reinterpreted in biosemiotics terms. Through reinterpretation these biological facts reflect and further define biosemiotics. All empirical work on biosemiotics can be classified in these activities.

In addition to solving problems previously solved by neo-Darwinian biology and reformulating theories in semiotic terms as discussed above biosemiotics has some advantages over neo-Darwinian biology. These advantages are the following: a) defining life as meaning-making processes is consistent with the understanding of biology as a science of living organisms; b) taking into account the notion of agency biosemiotics considers the evolution of life as not only passive but also active; c) it proposes a bridge between ontogeny and phylogeny that is absent in neo-Darwinian biology.Biosemiotics clearly satisfies the two sets of criteria mentioned in section 1. Therefore we can conclude that biosemiotics is a paradigm or research programme for biology. The next question is whether it has become the phase of normal science that is whether it has matured.

Ⅳ. Some empirical signs of the maturity of biosemiotics

According to Kuhn the “Acquisition of a paradigm and of the more esoteric type of research it permits is a sign of maturity in the development if any given scientific field” (1962/2012 p. 12). As illustrated in section 1 to be a paradigm achievements must have two characters: a) attract an enduring group; b) be open-ended to leave problems to resolve. Biosemiotics clearly meets these requirements. First the biosemiotics community is a small but steadily growing group of scholars from different disciplines meeting annually and publishing research on biosemiotics in various academic journals (Favareau 2010 preface). Second the sets of biosemiotics questions are well defined leaving room for open-ended investigations (Kull et al. 2008).

In Kuhn’s term the esoteric nature of research means that research is conducted following the network of commitments of a paradigm. The community of a paradigm is an esoteric group that is exclusive. The boundary between the members and outsiders of a paradigm is based on the network of commitments discussed in section 1 in addition to an esoteric glossary research methods rules and evidentiary procedures. Without long-term esoteric or professional training a person cannot fully grasp these commitments and thus has no license to be a legitimate member of the community and is excluded from it. As mentioned in the previous section in biosemiotics the esoteric glossary methods and legitimate problems have been established through the work of generations of biosemioticians. In addition as a community biosemiotians consciously reconstruct the history identity research theses questions and methods of biosemiotics. For instance the terminology of biosemiotics is an important topic for biosemioticians (Danesi 2007). In 2014 the biosemiotics community launched “The Biosemiotic Glossary Project” in the effort to (1) “solidify and detail established terminology” used in the field of biosemiotics for the benefit of newcomers and outsiders and (2) involve the entire biosemiotics community (Tønnessen 2015).

Moreover Kuhn (1962) proposes three other signs of maturity of a paradigm: a) being isolated from philosophy; b) the end of the debate on metaphysical and methodological commitments; c) the end of competing schools. In summary no fundamental novelty is allowed and puzzle-solving occupies almost all of the research activities of normal science. Although some scholars may associate biosemiotics with the philosophy of biology biosemiotians “emphasize its scientific and often practical orientation” (Sharov et al. 2015). With an agreement between major schools in biosemiotics biosemiotians agree “to put their differences aside in the interest of a greater goal” (Barbieri 2005). Therefore biosemiotics shows these three signs of maturity. Unlike the early years of biosemiotics there are less discussions about the fundamental commitments of biosemiotics and more about specific topics (Maran Sharov & Tønnessen 2017).

Furthermore biosemiotians claim that biosemiotics is an inter-trans-disciplinary science which is intuitively in conflict with the defining characters of paradigms as esoteric and somewhat exclusive. On the one hand some object that the inter-trans-disciplinary nature of biosemiotics cannot be a paradigm in Kuhn’s sense. On the other hand if biosemiotics abandons this inter-trans-disciplinary nature it will lose its originality and innovativity. Other scholars complain that biosemiotics today is not as exciting as it was in the early days because most research is boring and technical and aims to solve trivial problems. Therefore original creative innovation is no longer possible in biosemiotics research. However Kuhn suggests that normal science is not about fundamental novelty but puzzle-solving. Therefore the disappearance of this inter-trans-disciplinary character offers another evidence that biosemiotics is a paradigm.

Finally Kuhn argues that “In the sciences the formation of specialized journals the foundation of specialists’ society and the claim for a special place in the curriculum have usually been associated with a group’s first reception of a single paradigm” (1962/2012 p. 19). There are numerous examples of such scholarly developments. For instance the International Society for Biosemiotic Studies (ISBS) was established in 2005. The Nordic Association for Semiotic Studies and The International Association for Cognitive Semiotics are also important societies for biosemiotics. In addition various journals such as Semiotica Sign Systems Studies and Cybernetics and Human Knowing were important platforms during the early days of biosemiotics. In 2008 the official journal of ISBS Biosemiotics published by Springer was launched. Moreover since 2001 the annual Gathering in Biosemiotics conference has been uninterruptedly held for 18 years while the World Congress of Semiotics provides another platform for biosemiotics. Finally courses in biosemiotics are taught all around the world. In particular Tartu University in Estonia and Charles University in Prague are specialised in training young biosemiotians.

All this evidence supports the claim that biosemiotics has matured in other words that it has become the phase of normal science. However it still faces challenges.

Ⅴ. Internal and external challenges

It can be argued that biosemiotics is not a science but provides a way to reinterpret reformulate reconfigure and reshape biology from the perspective of semiotics. Indeed biosemiotics has no predictive power and the results of biosemiotics research cannot be justified experimentally. However I propose that this objection is not strong enough to argue against biosemiotics as a paradigm. The reformulation of facts and theories is a large part of the work at the early stage of a new paradigm because the paradigm must not only solve problems that previous paradigms have failed to solve but it must also show that it can at least equally solve problems previously solved by old ones. Various empirical studies show that biosemiotics is more powerful in explaining the semiotic aspect of nature but also offers experimentally testable models (see Deacon 2012 for instance) and predicts new facts for example Barbieri’s theory predicts the triadic structure of organic codes in organisms (2003). Nevertheless biosemiotics still faces external and internal challenges.

Externally what is the relationship between biosemiotics and neo-Darwinian biology? Neo-Darwinian biology does not ignore sign phenomena in nature. For instance there are studies on animal signals and communication formulated under the paradigm. How can biosemiotics participate in these studies? The general answer to this question is inspired by Pattee’s formulation of the relationship between physics and semiotics which proposes that biosemiotics is complementary to neo-Darwinian biology rather than an alternative paradigm (Kull 2007; Kull et al. 2008; Emmeche & Kull 2011). Yet this answer is closer to a compromise than a solution because the metaphysical commitments of biosemiotics are in conflict with those of neo-Darwinian biology. For instance neo-Darwinian biology categorically denies teleology and homotropic inheritance and opposes vitalism while biosemiotics admits without hesitation its kinship with them. Hence perhaps the answer involves an ontological synthesis (Cao 1997 pp. 362-365) between these two paradigms namely the parts of neo-Darwinian biology useful for biosemiotics should be reserved and reconceptualised in biosemiotics. Indeed ontological synthesis is only possible when these reserved parts are reconceptualised in fundamentally different ideas.

Internally there are different schools in the biosemiotics community: sign Darwinian code and hermeneutic biosemiotics (Barbieri 2009). Although these schools were once competitive following the agreement mentioned above their differences have been put aside. However this is a temporary strategy for the greater good. To become a unified science a way to choose or synthesise must be found. Grygar provides a middle way suggesting that these schools complement each other in Bohr’s sense. Therefore he concludes that biosemiotics is “one of the special sciences or its potential as a cross-disciplinary branch of study” (2017). However the persuasiveness of this argument remains to be proven. According to Kuhn competitive schools will disappear if one school wins out. Although many scholars do not want it perhaps this will happen to biosemiotics.

Be that as it may if biosemiotians want to complete the revolution of biology they must face these challenges and make a choice.

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Author :

Liqian Zhou Doctor of Philosophy assistant professor at Department of Philosophy Nanjing University. His research fields include philosophy of information philosophy of system science and biosemiotics.

作者简介：

周理乾，哲学博士，南京大学哲学系助理研究员。主要研究领域为：信息理论与信息哲学、系统科学哲学和生物符号学。

本期编辑：武学颖

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