In the biological realm, a complete explanation of a trait seems to include an explanation in terms of function. It is natural to ask of some trait, "What is its function?" or "What purpose in the organism does the particular trait serve?" or "What is the goal of its activity?" There are several views concerning the appropriate definition of function for biological matters. Two popular views of function with respect to living things are Cummins' organizational account and the Griffiths/Godfrey-Smith modern (...) history account. Whereas Cummins argues that a trait functions so as to contribute to the general organization of some organism's present structure, Griffiths, and Godfrey-Smith argue that a trait functions because of its fitness with respect to the organism's recent evolutionary history. In this paper, I show how these accounts can be made compatible and compliment one another. Given that structure, organization, operational flexibility, function, and evolutionary history are all factors to be considered in an organism's makeup, we should expect that the traits of an organism function the way they do because such traits presently contribute to the overall organization of the organism (Cummins) as well as were selected for in the organism's species' recent ancestry (Griffiths/Godfrey-Smith). (shrink)

William Bateson has long occupied a controversial role in the history of biology at the turn of the twentieth century. For the most part, Bateson has been situated as the British translator of Mendel or as the outspoken antagonist of W. F. R. Weldon and Karl Pearson's biometrics program. Less has been made of Bateson's transition from embryologist to advocate for discontinuous variation, and the precise role of British and American influences in that transition, in the years leading up to (...) the publication of his massive Materials for the Study of Variation. In this paper, I first attempt to trace Bateson's development in his early career before turning to search for the development of the moniker "anti-Darwinist" that has been attached to Bateson in well-known histories of the neo-Darwinian Synthesis. (shrink)

Recent theological anthropology emphasizes a dynamic and integral understanding of the human being, which is also related to Karl Rahner's idea of active self-transcendence and to the imago Dei doctrine. The recent neuroscientific discovery of the “visual word form area” for reading, regarded in light of the concept of cultural neural reuse, will produce fresh implications for the interrelation of brain biology and human culture. The theological and neuroscientific parts are shown in their mutual connections thus articulating the notion that (...) human beings shape and transcend themselves both at the biological and at the cultural level. This will have relevant implications for the timely topic of human uniqueness in science and theology, and in proposing a new research perspective in which theology may consider culture along with its biological import, but not necessarily in strictly evolutionary terms alone. (shrink)

The principle aim of this thesis is to provide an account of the nature of health. The starting-point is that health is a normative concept: health implies a standard or norm in relation to which an organism’s state is evaluated. Many philosophers take this to imply that health must be defined in subjective terms. They either think health consists in a certain type of subjective experience, or that health is relative to subjective values and goals. I argue that subjective definitions (...) of health fail to capture the essential properties of health and attempt to show that health is something normative and yet entirely objective. This would imply that there are normative facts in the world, and to support this claim I turn to debates in contemporary meta-ethics. I develop a meta-ethical theory according to which a subset of non-moral goods is grounded in objective features of living beings, and argue that this meta-ethical theory opens the possibility for an objective account of health. I then proceed to develop a theory of health that aims to capture what it means for any living to be healthy. I argue that the concept of health latches onto organisms’ capacities : the greater an organism’s range of capacities, i.e. the more it is capable of doing, the healthier it is. The norm relative to which an organism’s range of capacities is measured in evaluations of health, I go on to argue, is the maximum range of capacities possible for the species. Accordingly, an organism is healthy if it is capable of performing all species-specific activities. A closer analysis of this claim yields the formal definition that health consists in a multiplicity of potential activity vis-à-vis factual limitations set by the species. This definition of health is defended against various objections and potential counterexamples. In the context of human health, I attempt to show this definition of health captures both physical and mental dimensions of health; that it establishes a direct link between health and individual autonomy; and that it supports a Nietzschean account of ‘the greathealth’—the idea that being able to give up the concern for one’s health constitutes a superior kind of health. In the conclusions, I reflect on whether this conception of health could function as an ethical ideal, and consider the form that a health-based ethics could take. (shrink)

Suppose that consciousness is a natural feature of biological organisms, and that it is a capacity or property or process that resides in a single organ. In that case there is a straightforward question about the consciousness organ, namely: How did the consciousness organ come to be formed and why is its presence maintained in those organisms that have it? Of course answering this question might be rather difficult, particularly if the consciousness organ is made of soft tissue that leaves (...) at best indirect fossil records, or if it has been fixed in the populations for such a long time that there are few available examples of organisms that lack the consciousness organ on which to conduct comparative experiments. No doubt there are other confounding practical obstacles as well. But these are just the complications that face biologists and natural historians on a regular basis, and they do not reflect any special problems about the study of consciousness. This is just to say that if consciousness is a natural feature of biological organisms then its origins and history can be studied in the same manner as other features of the biological world. It’s a hard business, but biologists are pretty good at it. (shrink)

Astonishing changes have occurred to agricultural production systems since WWII. As such, many people tend to date the origins of industrial chemical agricultural to the early 1940s. The origins of industrial chemical agriculture, however, both on and off the field, have a much longer history. Indeed, industrial agriculture’s much discussed chemical dependency—in particular its need for toxic chemicals—and the development of the industries that feed this fix, have a long and diverse past that extend well back into the nineteenth century. (...) In this paper, through the narrative of a late nineteenth century creation story, I go in search of a crucial linchpin in that longer history. I argue that industrial pest control has been imbued with the practices, discourse, materials, and ethics of modern chemical warfare since its inception. Faced with pest-induced collapse, Los Angeles citrus growers and scientists of the USDA and UC Agricultural Extension chemically fixed the citrus pest problem by developing and utilizing the cyanide gas chamber. Cyanide fumigation quickly became the toxic cornerstone of the citrus industry, enabling its intensification and expansion as the pest infection became systemic. By the turn the century, furnished with an economic poison made cheap and weapons-grade due to changes in the world gold mining industry, growers transformed cyanide fumigation into a necessary agricultural input. In chemically overriding an agro-ecological contradiction of capitalist agriculture, growers, scientists, and government officials amalgamated industrially organized agriculture to accelerating and endless chemical warfare. These suddenly necessary agricultural practices signaled a state change in world-ecology and agroindustrial organization, thus, the discovery of effective industrial control for citrus pests was not only a pivotal moment in the history of Southern California but it was also an event that has had world-historical implications. (shrink)

I propose that the underlying adaptation enabling the reproductive strategy of birthing live young (viviparity) is retraction of the site of fertilization within the female reproductive tract, and that this evolved as a means of postcopulatory sexual selection. There are three conspicuous aspects associated with viviparity: (i) internal development is a complex trait often accompanied by a suite of secondary adaptations, yet it is unclear how the intermediate state of this trait – egg retention – could have evolved; (ii) viviparity (...) often results in a reduction in fecundity; (iii) viviparity has evolved independently many times across a diverse array of animal groups. Focusing on the Diptera (true flies), I provide explanations for these observations. I further propose that fecundity is not traded‐off to enable potential benefits of viviparity, but rather that loss of fecundity is directly selected and egg retention is an indirect consequence – a model that provides a unifying common basis for the ubiquity of viviparity. (shrink)

In the general understanding, and also in scientific practice, technology and society are viewed as two distinct entities. Related to this view is the assumption that technology and human experience are quite different and unconnected and also the idea that modernity has uprooted, de-contextualized and disembodied technical rationality. Taking a contrary approach, this study represents a theoretical exploration aimed at showing that in the domain of technological development, there are significant margins for maneuver in which to recuperate and valorize human (...) and social action. As a work of theoretical sociology or social epistemology, this thesis approaches its subject from the theoretical background of the philosophy and sociology of technique. The historical and conventional assumptions of this theoretical background, it is argued, have been and continue to be characterized by a hegemonically defined essentialist paradigm. This paradigm has been fiercely counteracted by two opposed approaches, critical theory and pragmatism. The present work combines these approaches, usually considered mutually incompatible, for the development of a new theoretical gaze or perspective. The aim has been to engage in a theoretical research oriented to a new philosophy of praxis in order to instigate a critical and constructivist approach to technology. The main result expected of this work is the provision of a problematized and multifaceted semantic map leading to a multidimensional conceptual re-integration of skilled experience in human technical action. (shrink)

Books Christy Mag Uidhir, Art andObjects [Elisa Caldarola, p. 182] • Julie Jaffee Nagel, Melodies of the Mind. Connections Between Psychoanalisis and Music [Michele Gardini, p. 185] • Dominic McIver Lopes, Beyond Art [Filippo Focosi, p. 187] • Annemarie Gethmann-Siefert, Herta Nagl-Docekal, Erzsébet Ròsza, Elisabeth Weisser-Lohmann, Hegels Ästhetik als Theorie der Moderne [Lorenzo Leonardo Pizzichemi, p. 190] Comments Toward an Integrated Science of Aesthetics. Getting Rid of the Main Misunderstandings in Evolutionary Aesthetics [Mariagrazia Portera, p. 194].

The role of the arts has become crucial to understanding the origins of “modern human behavior,” but continues to be highly controversial as it is not always clear why the arts evolved and persisted. This issue is often addressed by appealing to adaptive biological explanations. However, we will argue that the arts have evolved culturally rather than biologically, exploiting biological adaptations rather than extending them. In order to support this line of inquiry, evidence from a number of disciplines will be (...) presented showing how the relationship between the arts, evolution, and adaptation can be better understood by regarding cultural transmission as an important second inheritance system. This will allow an alternative proposal to be formulated as to the proper place of the arts in human evolution. However, in order for the role of the arts to be fully addressed, the relationship of culture to genes and adaptation will be explored. Based on an assessment of the cognitive, biological, and cultural aspects of the arts, and their close relationship with ritual and associated activities, we will conclude with the null hypothesis that the arts evolved as a necessary but nonfunctional concomitant of other traits that cannot currently be refuted. (shrink)

Science is about conceptualizing the natural world in a way that can be understood by human beings while at the same time reflecting as much as possible what we can empirically infer about how the world actually is. Among the crucial tools that allow scientists to formulate hypotheses and to contribute to a progressive understanding of nature are the use of imagery and metaphors, on the one hand, and the ability to assume certain starting points on which to build new (...) avenues of inquiry on the other hand. The premise of this work is that, in the words of philosopher of science Daniel Dennett, "There is no such thing as philosophy-free science; there is only science whose philosophical baggage is taken on board without examination." The purpose here is precisely to examine some of this philosophical baggage, and to see where such analysis may lead us. Obviously, it is not possible for a single project to take on science as a whole, or even an entire discipline such as physics, or ecology. Therefore, the core of this work is constituted by a series of eight case studies drawn from the field of evolutionary biology, with which I am particularly familiar as a practicing biologist. The hope is that combining expertise in both philosophy and science in one person, the resulting insights might be useful for the practicing scientist as well as because of their value as philosophical inquires. The dissertation is a combination of conceptual analysis and science criticism applied to specific questions in organismal biology, largely of an evolutionary nature, with the eight case studies grouped into three broad categories: Unexamined Baggage, Bad Habits, and Good and bad metaphors. (shrink)

There is a worry that the ‘major transitions in evolution’ represent an arbitrary group of events. This worry is warranted, and we show why. We argue that the transition to a new level of hierarchy necessarily involves a nonselectionist chance process. Thus any unified theory of evolutionary transitions must be more like a general theory of fortuitous luck, rather than a rigid formulation of expected events. We provide a systematic account of evolutionary transitions based on a second-order regularity of chance (...) events, as stipulated by the ZFEL (Zero Force Evolutionary Law). And in doing so, we make evolutionary transitions explainable and predictable, and so not entirely contingent after all. (shrink)

The article discusses evolutionary aspects of mimicry from a semiotic viewpoint. The concept of semiotic scaffolding is used for this approach, and its relations with the concepts of exaptation and semiotic co-option are explained. Different dimensions of scaffolding are brought out as ontogenetic, evolutionary, physiological and cognitive. These dimensions allow for interpreting mimicry as a system that scaffolds itself. With the help of a number of mimicry cases, e.g. butterfly eyespots, brood parasitism, and plant mimesis, the evolutionary dynamics of mimicry (...) in the open bio-semiosphere is investigated. The main argument is that biological mimicry largely develops through sign relations and communicative relations between organisms. It is proposed that mimicry systems should be described as two-layered structures composed of the ecological composition of the species involved and the semiotic structure of their communication. (shrink)

Daniel C. Dennett ha dedicado una parte considerable de su obra a concebir una aplicación de la ingeniería inversa y el adaptacionismo para explicar la evolución de la mente humana. Dennet considera esta perspectiva como una posibilidad prometedora en el desarrollo de una psicología científica, en contraposición al "materialismo eliminacionista" de la neurociencia. En este artículo se expone una aproximación conceptual y se examina un antecedente filosófico en las discusiones sobre el adaptacionismo en biología y psicología evolutiva: la intencionalidad o (...) teoría de los sistemas intencionales. Daniel C. Dennett has dedicated a great part of his work to the conception of an application of reverse engineering and adaptationism in order to explain the evolution of the human mind. Dennett sees this perspective as a promising possibility in the development of a scientific psychology, in contrast to the "eliminative materialism" of neuroscience. The article provides a conceptual approach and examines a philosophical precedent in the discussions regarding adaptationism in biology and evolutionary psychology: intentionality or the theory of intentional systems. Daniel C. Dennett dedicou uma parte considerável de sua obra a conceber uma aplicação da engenharia inversa e do adaptacionismo para explicar a evolução da mente humana. Dennett considera essa perspectiva como uma possibilidade prometedora no desenvolvimento de uma psicologia científica, em contraposição ao "materialismo eliminacionista" da neurociência. Neste artigo, expõe-se uma aproximação conceitual e examina-se um antecedente filosófico nas discussões sobre o adaptacionismo em biologia e psicologia evolutiva: a intencionalidade ou teoria dos sistemas intencionais. (shrink)

El objetivo de este trabajo es poner al descubierto los principales valores cognitivos y epistemológicos desde los que Warren Weaver puso en marcha el Programa de Biología Experimental, un programa que llevado a cabo desde la presidencia de la división de ciencias naturales de la Fundación Rockefeller, marcó y condicionó en buena medida el posterior desarrollo de la investigación biológica. Para tal fin se mostrará, en primer lugar, cómo fue la llegada de Weaver a la Fundación Rockefeller, así como las (...) razones bajo las cuáles el consejo de esa institución decidió entre 1932 y 1933 dar prioridad a las investigaciones biomédicas, y la manera por la cual lo hicieron. En un segundo momento, el más extenso e importante, veremos algunos de los elementos más significativos de la perspectiva epistemológica y cognoscitiva de de Weaver. Finalizaremos viendo cómo esa perspectiva, desarrollada en conexión con el Programa de Biología Experimental, inter-actuó con la visión reduccionista de la biología a la que el programa parecía apuntar. The aim of this article is to uncover the main cognitive and epistemological values that influenced Warren Weaver in starting the Experimental Biology Program, a program carried out from the time that he became president of the Natural Sciences Division of the Rockefeller Foundation, and which significantly marked and conditioned the subsequent development of biological research. To this end, we first describe the arrival of Warren Weaver at the Rockefeller Foundation, and the reasons for which the Board of this Foundation, between 1932 and 1933, decided to prioritize biomedical research, and the manner in which they did so. Then, secondly, in the largest and most important part of the article, we will present some of the most significant elements of Weaver's epistemological and cognitive perspective. Finally, we will show how this perspective, developed in connection with the Experimental Biology Program, interacted with the reductionist view of biology to which the program seemed to point. (shrink)

O conceito freudiano de "impulso", ou "instinto" (Trieb), é reconhecidamente um dos conceitos mais fundamentais da psicanálise. No entanto, seu sentido ainda é objeto de controvérsia. Originalmente definido por Freud em um sentido biológico ou quase biológico, sua recepção em muitas das diversas tradições pós-freudianas tendeu, frequentemente, a recusar essa filiação epistemológica inicial. Um dos sinais dessa reorientação doutrinária é a recusa da tradução de "Trieb" por "instinto" e a preferência pelo neologismo "pulsão", de origem francesa e comum na literatura (...) psicanalítica escrita em várias das línguas neolatinas, inclusive em português. O objetivo deste artigo é criticar essa tendência. Para tanto, são examinados os principais argumentos normalmente apresentados contra uma visão biológica do Trieb freudiano, a saber, 1) a alternativa terminológica entre os termos alemães "Trieb" e "Instinkt" e o modo como estes são utilizados por Freud; 2) a crítica freudiana de uma redução da sexualidade humana à função reprodutiva; 3) o conceito de "Todestrieb" ("instinto de morte" ou "pulsão de morte") formulado por Freud por volta de 1920 e central na etapa final de seu pensamento. Procura-se argumentar que essas formulações não impedem uma interpretação biológica do conceito de "Trieb". Essa interpretação, por sua vez, abre uma via de diálogo entre a psicanálise e a biologia, a qual é também enfática e explicitamente defendida por Freud. Esta primeira parte do trabalho introduz a questão e também aborda o problema da relação entre sexualidade e reprodução na psicanálise e na biologia. Uma segunda parte, a ser publicada em uma próxima edição de Scientiae Studia, será dedicada ao problema da agressividade e da autodestrutividade nessas duas áreas do conhecimento. Freud's concept of "drive" or "instinct" ("Trieb") has been widely acknowledged as one of the most fundamental concepts of psychoanalysis. However, its meaning is still a matter of controversy. It was originally defined by Freud in a biological or quasi-biological sense, but its reception in many different post-Freudian traditions has often tended to reject this early epistemological affiliation. One sign of this theoretical reorientation has been to refuse the translation of "Trieb" as "instinct" and to favor instead the neologism "pulsion" ("drive"), which has French origins and became common in the psychoanalytic literature written in many neo-Latin languages, including Portuguese. The objective of this paper is to criticize this trend. For that, the main arguments usually presented against a biological view of Freud's "Trieb" are discussed, namely: (1) the terminological alternative between the German words "Trieb" and "Instinkt" and how these terms are employed by Freud; (2) Freud's critique of the reduction of human sexuality to the reproductive function; (3) the concept of "Todestrieb" ("death instinct" or "death drive"), formulated by Freud around 1920 and central in the last stage of his thought. It is argued that these formulations do not preclude a biological interpretation of the concept of "Trieb". Such interpretation, in turn, opens the way for dialogue between psychoanalysis and biology, a dialogue which was also emphatically and explicitly supported by Freud. This first part of the paper is an introduction to this issue, and approaches the problem of the relationship between sexuality and reproduction in psychoanalysis and biology. A second part will be published in a forthcoming issue of Scientiae Studia; it will be dedicated to the problem of aggression and self-destructiveness in these two fields of knowledge. (shrink)

Anthropological contributions are essential to understanding the evolution of writing and its potential variation. Although Stanislas Dehaene calls for a ‘neuro-anthropological perspective’, he neglects anthropological evidence, including the only indisputable case of independent invention of writing: the pre-Columbian systems of the Americas. Here I argue that anthropological and historical accounts of the cultural evolution of language suggest that ecological, technological, social and political factors have all influenced the ongoing development of writing systems, even in directions contrary to that predicted by (...) a model of increased neural efficiency. In addition, Pre-Columbian writing systems, not subject to a diffusionist confound because of their independent invention, caution that our research on diversity in writing may represent a small, systematically biased sample. To truly understand neuro-cognitive variation, we have to avoid both overly ambitious universalisms and radical cultural relativism. (shrink)

This paper explores the ways that Daniel C. Dennett’s bestselling 2006 book Breaking the Spell traffics in a set of distinctly American presumptions about the relationship between religion and science. In this Americanized atheism, religion is presumed to be a set of logically organized propositional beliefs–a misbegotten science in need of correction or elimination. I show that a convergent critique, drawing on both evolutionary theory and deconstruction, highlights the limitations of this approach. This convergence highlights the theme of accident in (...) both pluralist evolutionary biology and continental philosophy of religion. Thematizing accident opens up a new conversational space between a deconstructive approach to religion and postadaptationist evolutionary theory, with implications not only for a philosophical understanding of religion, but for new, postsecular atheisms. (shrink)

This chapter contains sections titled: Highlights of Past Literature Current Work Future Work.

The debate about the credentials of sociobiology has persisted because scholars have failed to distinguish the varieties of sociobiology and because too little attention has been paid to the details of the arguments that are supposed to support the provocative claims about human social behavior. I seek to remedy both deficiencies. After analysis of the relationships among different kinds of sociobiology and contemporary evolutionary theory, I attempt to show how some of the studies of the behavior of nonhuman animals meet (...) the methodological standards appropriate to evolutionary research. I contend that the efforts of E. O. Wilson, Richard Alexander, Charles Lumsden, and others to generate conclusions about human nature are flawed, both because they apply evolutionary ideas in an unrigorous fashion and because they use dubious assumptions to connect their evolutionary analyses with their conclusions. This contention rests on analyses of many of the major sociobiological proposals about human social behavior, including: differences in sex roles, racial hostility, homosexuality, conflict between parents and adolescent offspring, incest avoidance, the avunculate, alliances in combat, female infanticide, and gene–culture coevolution.Vaulting Ambitionthus seeks to identify what is good in sociobiology, to expose the errors of premature speculations about human nature, and to prepare the way for serious study of the evolution of human social behavior. (shrink)

In biosemiotics, living beings are not conceived of as the passive result of anonymous selection pressures acted upon through the course of evolution. Rather, organisms are considered active participants that influence, shape and re-shape other organisms, the surrounding environment, and eventually also their own constitutional and functional integrity. The traditional Darwinian division between natural and sexual selection seems insufficient to encompass the richness of these processes, particularly in light of recent knowledge on communicational processes in the realm of life. Here, (...) we introduce the concepts of semiotic selection and semiotic co-option which in part represent a reinterpretation of classical biological terms and, at the same time, keep explanations sensitive to semiosic processes taking place in living nature. We introduce the term ‘semiotic selection’ to emphasize the fact that actions of different semiotic subjects (selectors) will produce qualitatively different selection pressures. Thereafter, ‘semiotic co-option’ explains how semiotic selection may shape appearance in animals through remodelling existing forms and relations. Considering the event of co-option followed by the process of semiotic selection enables us to describe the evolution of semantic organs. (shrink)

Many of the features that distinguish the vertebrates from other chordates are derived from the neural crest, and it has long been argued that the emergence of this multipotent embryonic population was a key innovation underpinning vertebrate evolution. More recently, however, a number of studies have suggested that the evolution of the neural crest was less sudden than previously believed. This has exposed the fact that neural crest, as evidenced by its repertoire of derivative cell types, has evolved through vertebrate (...) evolution. In this light, attempts to derive a typological definition of neural crest, in terms of molecular signatures or networks, are unfounded. We propose a less restrictive, embryological definition of this cell type that facilitates, rather than precludes, investigating the evolution of neural crest. While the evolutionary origin of neural crest has attracted much attention, its subsequent evolution has received almost no attention and yet it is more readily open to experimental investigation and has greater relevance to understanding vertebrate evolution. Finally, we provide a brief outline of how the evolutionary emergence of neural crest potentiality may have proceeded, and how it may be investigated. BioEssays 30:530–541, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

RESUMEN Se analiza si la versión de la justicia como equidad, presentada en El liberalismo político, es genuinamente una concepción política. Se examina el problema de la razonabilidad de las doctrinas comprehensivas, y se indaga luego si el argumento en dos etapas afecta la integridad estructural del liberalismo político. Se concluye que J. Rawls fracasa en su intento de justificar un liberalismo independiente de una doctrina comprehensiva de carácter liberal. ABSTRACT The article analyzes whether the conception of justice as fairness, (...) set forth by Rawls in Political Liberalism, is a genuine political conception. It first examines the issue of reasonableness of comprehensive doctrines and then goes on to inquire whether the two-step argument affects the structural integrity of political liberalism. The paper concludes that J. Rawls fails in his attempt to justify liberalism independently of a comprehensive liberal doctrine. (shrink)

RESUMEN Se analiza si la versión de la justicia como equidad, presentada en El liberalismo político, es genuinamente una concepción política. Se examina el problema de la razonabilidad de las doctrinas comprehensivas, y se indaga luego si el argumento en dos etapas afecta la integridad estructural del liberalismo político. Se concluye que J. Rawls fracasa en su intento de justificar un liberalismo independiente de una doctrina comprehensiva de carácter liberal. ABSTRACT The article analyzes whether the conception of justice as fairness, (...) set forth by Rawls in Political Liberalism, is a genuine political conception. It first examines the issue of reasonableness of comprehensive doctrines and then goes on to inquire whether the two-step argument affects the structural integrity of political liberalism. The paper concludes that J. Rawls fails in his attempt to justify liberalism independently of a comprehensive liberal doctrine. (shrink)

We argue that the physics of complex materials and self-organizing processes should be made central to the biology of form. Rather than being encoded in genes, form emerges when cells and certain of their molecules mobilize physical forces, effects, and processes in a multicellular context. What is inherited from one generation to the next are not genetic programs for constructing organisms, but generative mechanisms of morphogenesis and pattern formation and the initial and boundary conditions for reproducing the specific traits of (...) a taxon. There is no inherent antagonism between this “physicalist” perspective and genetics, since physics acts on matter, and gene products are essential material components of living systems whose variability affects the systems’ parameters. We make this notion concrete by summarizing the concept of “dynamical patterning modules” (DPMs; Newman and Bhat, Phys Biol 5:1–14, 2008; Int J Dev Biol 53:693–705, 2009), an explicit physico-genetic framework for the origin and evolution of multicellular form in animals, as well as (when differences in interaction toolkit genes and applicable physical processes are taken into account) in multicellular plants (Hernández-Hernández et al., Int J Dev Biol 56:661–674, 2012). DPMs provide the missing link between development and evolution by revealing how genes acting in concert with physics can generate and transform morphology in a heritable fashion. (shrink)

Organic appearances are largely neglected by contemporary biology; partly because they are regarded as superficial effects of causes concealed beneath the surface. The persuasion that everything what does exist is existent for some immediately non-apparent reasons belongs to a general belief of modern science. All organisms are of the same evolutionary origin and of the same world wherein appearance coincides with existence. In this study, living beings are approached as appearing centers of experience that reflects their evolutionary history. From biohermeneutic (...) point of view the evolution of organisms, interactions between organisms, and their relationships to environment is understood as “evolution of interpretations”. I use simple conceptual framework of perception, semiotic co-option, and modification to explain the evolution of semantic organs, i.e. organs that operate through the meaning that was given to them by an animal interpreter. (shrink)

This paper examines the ethological notion of ritualization from the perspective of zoosemiotic studies. Instead of moving within the horizon of traditional semiotic approaches to this phenomenon, my aim is to propose an alternative attempt of modelling based on the linguistic and semiotic concepts of context and contextuality. At the same time, the paper identifies ritualization as a case of exaptation, suggesting the extension of the context-based model within evolutionary biology and the agenda of its semiotic description, namely biosemiotics. At (...) lenght, a potential application of the model is suggested with respect to human ritualization, essentially as a means to prevent inadequate adaptationist considerations. (shrink)

The role of gene expression in evolutionary adaptation has been a subject of debate for over 40 years.cis‐regulation of transcription has been proposed to be the primary source of morphological novelty in evolution, though this is based on only a handful of examples. Recently the first genome‐wide studies of gene expression adaptation have been published, giving us an initial global view of this process. Systematic studies such as these will allow a number of key questions currently facing the field of (...) gene expression evolution to be addressed. (shrink)

The concept of natural kind is center stage in the debates about scientific realism. Champions of scientific realism such as Richard Boyd hold that our most developed scientific theories allow us to “cut the world at its joints” (Boyd, 1981, 1984, 1991). In the long run we can disclose natural kinds as nature made them, though as science progresses improvements in theory allow us to revise the extension of natural kind terms.

There has been a recent surge of evolutionary explanations of art. In this article I evaluate one currently influential example, Brian Boyd’s recent book On the Origin of Stories: Evolution, Cognition, and Fiction (2009). The book offers a stimulating collection of findings, ideas, and hypotheses borrowed from a wide range of research disciplines (philosophy of art and art criticism, anthropology, evolutionary and developmental psychology, neurobiology, ethology, etc.), brought together under the umbrella of evolution. However, in so doing Boyd lumps together (...) issues that need to be separated, most importantly, organic and cultural evolution. In addition, he fails to consider alternative explanations to art as adaptation such as exaptation and constraint. Moreover, the neurobiological literature suggests current evidence of biological adaptation for most of the arts is weak at best. Given these considerations, I conclude by proposing to regard the arts instead as culturally evolved practices building on pre-existing biological traits. (shrink)

We propose another positive illusion that fits with McKay & Dennett's (M&D's) criteria for adaptive misbeliefs. This illusion is pervasive in adult reasoning but we focus on its prevalence in children's developing theories. It is a strongly held conviction arising from normal functioning of the doxastic system that confers adaptive advantage on the individual.

Naive physics beliefs can be systematically mistaken. They provide a useful test-bed because they are common, and also because their existence must rely on some adaptive advantage, within a given context. In the second part of the commentary we also ask questions about when a whole family of misbeliefs should be considered together as a single phenomenon.

Studies based on the Contemporary Theory of Metaphor (Lakoff & Johnson, 1980, 1999) usually identify conceptual metaphors by analysing linguistic expressions and creating a post hoc interpretation of the findings. This method has been questioned for a variety of reasons, including its circularity (Müller, 2008), lack of falsifiability (Vervaeke & Kennedy, 1996, 2004), and lack of predictive power (Ritchie, 2003). It has been argued that CTM requires additional constraints to improve its applicability for empirical research (Gibbs, 2011; Ritchie, 2003). This (...) paper sets out to propose additional methodological structure to CTM, a theory of conceptual metaphor in which much of abstract thought is generated by metaphorical mapping from embodied experience (Ruiz de Mendoza Ibáñez & Pérez Hernández, 2011). Introducing Objectification Theory defined by Szwedek (2002, 2007, 2011) ameliorates a number of methodological issues in CTM. First, the embodiment claim of CTM in its current form cannot be empirically proven incorrect (Vervaeke & Kennedy, 2004) as any mapping within it is possible (although only some actually happen). Objectification introduces pre-metaphorical structure of the kind suggested by Glucksberg (2001), constraining source and target domain selection, predicting which mappings are more likely to happen. Second, while many claim that metaphors trace back to a literal concept based on embodied physical experience (Gibbs, Costa Lima, & Francozo, 2004), it is unclear what criteria are used to define „physical”. Metaphorical domains are often described using the terms „abstract” and „concrete”, Objectification proposes objective criteria for deciding whether a concept is experientially grounded. Finally, Objectification provides grounds for introducing a hierarchical framework for metaphor typology, preventing post-hoc addition of metaphor types if and when suitable for the explanation of a phenomenon; thus increasing the consistency of the CTM framework, both internally and with other cognitive science disciplines. This thesis focuses on providing evidence for Objectification Theory and identifying its applications in metaphor and gesture research. (shrink)

This article presents results from simulations studying the hypothesis that mechanisms for landmark-based navigation could have served as preadaptations for compositional language. It is argued that sharing directions would significantly have helped bridge the gap between general and language-specific cognitive faculties. A number of different levels of navigational and communicative abilities are considered, resulting in a range of possible evolutionary paths. The selective pressures for, resp. against, increased complexity in either faculty are then evaluated for a range of environments. The (...) study aims specifically to identify whether there is a viable evolutionary path leading to compositional language, and if so, under what circumstances. The results show that environmental conditions can render a step towards more complex communication either desirable or harmul, and suggest that very specific initial conditions and changes in the environment, resp. the ecological niche occupied, would have been needed to select for compositional language. Subject to these conditions, a (proto)language using order, but no hierarchical structure could evolve. This represents a middle ground, which brings closer hypotheses about syntax that have so far appeared difficult to reconcile. (shrink)