The comparison between biological and social macroevolution is a very important (though insufficiently studied) subject whose analysis renders new significant possibilities to comprehend the processes, trends, mechanisms, and peculiarities of each of the two types of macroevolution. Of course, there are a few rather important (and very understandable) differences between them; however, it appears possible to identify a number of fundamental similarities. One may single out at least three fundamental sets of factors determining those similarities. First of (...) all, those similarities stem from the fact that in both cases we are dealing with very complex non-equilibrium (but rather stable) systems whose principles of functioning and evolution are described by the General Systems' Theory, as well as by a number of cybernetic principles and laws. -/- Secondly, in both cases we do not deal with isolated systems; in both cases we deal with a complex interaction between systems of organic systems and external environment, whereas the reaction of systems to external challenges can be described in terms of certain general principles (that, however, express themselves rather differently within the biological reality, on the one hand, and within the social reality, on the other). -/- Thirdly, it is necessary to mention a direct ‘genetic’ link between the two types of macroevolution and their mutual influence. -/- It is important to emphasize that the very similarity of the principles and regularities of the two types of macroevolution does not imply their identity. Rather significant similarities are frequently accompanied by enormous differences. For example, genomes of the chimpanzees and the humans are very similar – with differences constituting just a few per cent; however, there are enormous differences with respect to intellectual and social differences of the chimpanzees and the humans hidden behind the apparently ‘insignificant’ difference between the two genomes. Thus, in certain respects it appears reasonable to consider the biological and social macroevolution as a single macroevolutionary process. This implies the necessity to comprehend the general laws and regularities that describe this process, though their manifestations may display significant variations depending on properties of a concrete evolving entity (biological, or social one). An important notion that may contribute to the improvement of the operationalization level as regards the comparison between the two types of macroevolution is the one that we suggested some time ago – the social aromorphosis (that was developed as a counterpart to the notion of biological aromorphosis well established within Russian evolutionary biology). We regard social aromorphosis as a rare qualitative macrochange that increases in a very significant way complexity, adaptability, and mutual influence of the social systems, that opens new possibilities for social macrodevelopment. In our paper we discuss a number of regularities that describe biological and social macroevolution and that employ the notions of social and biological aromorphosis such as ones of the module evolution (or the evolutionary ‘block assemblage’), ‘payment for arogenic progress’ etc. (shrink)

What are the driving forces of cultural macroevolution, the evolution of cultural traits that characterize societies or populations? This question has engaged anthropologists for more than a century, with little consensus regarding the answer. We develop and fit autologistic models, built upon both spatial and linguistic neighbor graphs, for 44 cultural traits of 172 societies in the Western North American Indian (WNAI) database. For each trait, we compare models including or excluding one or both neighbor graphs, and for the (...) majority of traits we find strong evidence in favor of a model which uses both spatial and linguistic neighbors to predict a trait’s distribution. Our results run counter to the assertion that cultural trait distributions can be explained largely by the transmission of traits from parent to daughter populations and are thus best analyzed with phylogenies. In contrast, we show that vertical and horizontal transmission pathways can be incorporated in a single model, that both transmission modes may indeed operate on the same trait, and that for most traits in the WNAI database, accounting for only one mode of transmission would result in a loss of information. (shrink)

This book is divided in two parts, the first of which shows how, beyond paleontology and systematics, macroevolutionary theories apply key insights from ecology and biogeography, developmental biology, biophysics, molecular phylogenetics, and even the sociocultural sciences to explain evolution in deep time. In the second part, the phenomenon of macroevolution is examined with the help of real life-history case studies on the evolution of eukaryotic sex, the formation of anatomical form and body-plans, extinction and speciation events of marine invertebrates, (...) hominin evolution and species conservation ethics. The book brings together leading experts, who explain pivotal concepts such as Punctuated Equilibria, Stasis, Developmental Constraints, Adaptive Radiations, Habitat Tracking, Turnovers, (Mass) Extinctions, Species Sorting, Major Transitions, Trends, and Hierarchies – key premises that allow macroevolutionary epistemic frameworks to transcend microevolutionary theories that focus on genetic variation, selection, migration and fitness. Along the way, the contributing authors review ongoing debates and current scientific challenges; detail new and fascinating scientific tools and techniques that allow us to cross the classic borders between disciplines; demonstrate how their theories make it possible to extend the Modern Synthesis; present guidelines on how the macroevolutionary field could be further developed; and provide a rich view of just how it was that life evolved across time and space. In short, this book is a must-read for active scholars and, because the technical aspects are fully explained, it is also accessible for non-specialists. Understanding evolution requires a solid grasp of above-population phenomena. Species are real biological individuals, and abiotic factors impact the future course of evolution. Beyond observation, when the explanation of macroevolution is the goal, we need both evidence and theory that enable us to explain and interpret how life evolves at the grand scale. (shrink)

This chapter contains sections titled: The Bridgeless Gap? Species Selection The Macroevolution Dispute as a Biological Controversy Postscript: Counterpoint Acknowledgments References.

Darwin’s main contribution to modern biology was to make clear that all history of life on earth is dominated by a simple principle, which is usually summarised as 'descent with modification'. However, interpretations about how this modification is produced have been controversial. In light of the data provided by recent studies on molecular biology, developmental biology, genomics, and other biological disciplines we discuss, in this paper, how Darwin's theory may apply to two main 'types' of evolution: that occurring in (...) the prebiotic world and that regarding the acquisition of major key-innovations differentiating higher-taxa, which makes up part of the so-called macroevolution. We argue that these studies show that evolution is a fascinating, complex and multifaceted process, with different mechanisms drivin it on different occasions and in different places. (shrink)

This chapter contains sections titled: The Domains of Microevolution and Macroevolution Changing Meanings of Macroevolution An Expanding Hierarchy of Selection Origins of Novelty Mass Extinctions Is Evolution Uniformitarian? Conclusions Postscript: Counterpoint References.

When philosophers of physics explore the nature of chance, they usually look to quantum mechanics. When philosophers of biology explore the nature of chance, they usually look to microevolutionary phenomena, such as mutation or random drift. What has been largely overlooked is the role of chance in macroevolution. The stochastic models of paleobiology employ conceptions of chance that are similar to those at the microevolutionary level, yet different from the conceptions of chance often associated with quantum mechanics and Laplacean (...) determinism. (shrink)

Euglenids comprise a group of single‐celled eukaryotes with diverse modes of nutrition, including phagotrophy and photosynthesis. The level of morphological diversity present in this group provides an excellent system for demonstrating evolutionary transformations in morphological characters. This diversity also provides compelling evidence for major events in eukaryote evolution, such as the punctuated effects of secondary endosymbiosis and mutations in underlying developmental mechanisms. In this essay, we synthesize evidence for the origin, adaptive significance and diversification of the euglenid cytoskeleton, especially pellicle (...) ultrastructure, pellicle surface patterns, pellicle strip number and the feeding apparatus. We also highlight holes in our knowledge that must be filled before we are able to confidently describe euglenid cell biology and infer the earliest stages in euglenid evolution. Nonetheless, by possessing combinations of characters resulting from adaptive change and morphostasis, euglenids have retained key pieces of evidence necessary for reconstructing the early evolution and diversification of eukaryotic life. BioEssays 29:987–1000, 2007. © 2007 Wiley Periodicals, Inc. (shrink)

Speciation is the process by which one or more species arises from a common ancestor, and “macroevolution” refers to patterns and processes at and above the species level – or, transitions in higher taxa, such as new families, phyla or genera. “Macroevolution” is contrasted with “microevolution,” evolutionary change within populations, due to migration, assortative mating, selection, mutation and drift. In the evolutionary synthesis of the 1930’s and 40’s, Haldane , Dobzhansky , Mayr , and Simpson argued that the (...) origin of species and higher taxa were, given the right environmental conditions and sufficient time, the product of the same microevolutionary factors yielding change within populations. Dobzhansky reviewed the evidence from genetics, and argued, “nothing in the known macroevolutionary phenomena would require other than the known genetic principles for causal explanation” . In sum, genetic variation between species was not different in kind from the genetic variation within species. Dobzhansky concluded that one may “reluctantly put an equal sign” between micro- and macroevolution. In this chapter, I review arguments for and against this "neo-Darwinian" consensus on speciation, as well as debates concerning macroevolution and punctuated equilibrium. (shrink)

The genetic code appeared on Earth at the origin of life, and the codes of culture arrived almost four billion years later. For a long time it has been assumed that these are the only codes that exist in Nature, and if that were true we would have to conclude that codes are extraordinary exceptions that appeared only at the beginning and at the end of the history of life. In reality, various other organic codes have been discovered in the (...) past few decades and it is likely that more will come to light in the future. The existence of many organic codes in Nature is therefore an experimental fact, but also more than that. It is one of those facts that have extraordinary implications. In this book it is shown that the genetic code was a precondition for the origin of the first cells, the signal transduction codes divided the first cells into three primary kingdoms (Archaea, Bacteria and Eukarya), the splicing codes were instrumental to the origin of the eukaryotic nucleus, the histone code provided a new regulation system in eukaryotic genomes, and the cytoskeleton codes allowed the Eukarya to perform internal movements, including those of mitosis and meiosis. It is shown, furthermore, that organic codes had a key role in multicellular life, in particular in the origin of animals, the origin of mind and the origin of language. The great events of macroevolution, in other words, were associated with the appearance of new organic codes, and we can easily understand why. The reason is that a new code brings into existence something that has never existed before because it creates arbitrary associations, relationships that are not determined by physical necessity. Another outstanding implication is the fact that codes involve meaning and we need therefore to introduce in biology, with the standard methods of science, not only the concept of biological information but also that of biological meaning. The research on biological codes, in conclusion, is bringing to light new mechanisms in evolution and new fundamental concepts in science. This research is the field of Code Biology, the study of all codes of life, from the genetic code to the codes of culture, from the origin of life to the origin of man. (shrink)

Given the numerous parallels between the archaeological and paleontological records, it is not surprising to find a considerable fit between macroevolutionary approaches and methods used in biology – for example, cladistics and clade-diversity measures – and some of those that have long been used in archaeology – for example, seriation. Key, however, is recognizing that this methodological congruence is illusory in terms of how evolution has traditionally been viewed in biology and archaeology. (Published Online November 9 2006).

The model of major transitions in evolution devised by Maynard Smith and Szathmáry has exerted tremendous influence over evolutionary theorists. Although MTE has been criticized for inconsistently combining different types of event, its ongoing appeal lies in depicting hierarchical increases in complexity by means of evolutionary transitions in individuality. In this paper, we consider the implications of major evolutionary events overlooked by MTE and its ETI-oriented successors, specifically the biological oxygenation of Earth, and the acquisitions of mitochondria and plastids. (...) By reflecting on these missed events, we reveal a central philosophical disagreement over the explanatory goals of major transitions theory that has yet to be made explicit in the literature. We go on to argue that this philosophical disagreement is only reinforced by Szathmáry’s recent revisions of MTE in the form of MTE 2.0. This finding motivates us to propose an alternative explanatory strategy: specifically, an interactionist metabolic perspective on major transitions. A metabolic framework not only avoids many of the criticisms that beset classic and revised MTE models, but also accommodates missing events and provides crucial explanatory components for standard major transitions. Although we do not provide a full-blown alternative theory and do not claim to achieve unity, we explain why foregrounding metabolism is crucial for any attempt to capture the major turning points in evolution, and why it does not lead to unmanageable pluralism. (shrink)

Systems Biology and the Modern Synthesis are recent versions of two classical biological paradigms that are known as structuralism and functionalism, or internalism and externalism. According to functionalism (or externalism), living matter is a fundamentally passive entity that owes its organization to external forces (functions that shape organs) or to an external organizing agent (natural selection). Structuralism (or internalism), is the view that living matter is an intrinsically active entity that is capable of organizing itself from within, with purely (...) internal processes that are based on mathematical principles and physical laws. At the molecular level, the basic mechanism of the Modern Synthesis is molecular copying, the process that leads in the short run to heredity and in the long run to natural selection. The basic mechanism of Systems Biology, instead, is self-assembly, the process by which many supramolecular structures are formed by the spontaneous aggregation of their components. In addition to molecular copying and self-assembly, however, molecular biology has uncovered also a third great mechanism at the heart of life. The existence of the genetic code and of many other organic codes in Nature tells us that molecular coding is a biological reality and we need therefore a framework that accounts for it. This framework is Code biology, the study of the codes of life, a new field of research that brings to light an entirely new dimension of the living world and gives us a completely new understanding of the origin and the evolution of life. (shrink)

Stephen Jay Gould’s views on the ontology of species were an important plank of his revisionist program in evolutionary theory. In this paper I cast a critical philosopher’s eye over those views. I focus on three central aspects of Gould’s views on species: the relation between the Darwinian and the metaphysical notions of individuality, the relation between the ontology of species and macroevolution, and the issue of contextualism and conventionalism about the metaphysics of species.

Is life a purely physical process? What is human nature? Which of our traits is essential to us? In this volume, Daniel McShea and Alex Rosenberg – a biologist and a philosopher, respectively – join forces to create a new gateway to the philosophy of biology; making the major issues accessible and relevant to biologists and philosophers alike. Exploring concepts such as supervenience; the controversies about genocentrism and genetic determinism; and the debate about major transitions central to contemporary thinking about (...) macroevolution; the authors lay out the broad terms in which we should assess the impact of biology on human capacities, social institutions and ethical values. (shrink)

The ontological dependence of one domain on another is compatible with the explanatory autonomy of the less basic domain. That autonomy results from the fact that the relationship between two domains can be very complex. In this paper I distinguish two different types of complexity, two ways the relationship between domains can fail to be transparent, both of which are relevant to evolutionary biology. Sometimes high level explanations preserve a certain type of causal or counterfactual information which would be lost (...) at the lower level; I argue that this is central to the proper understanding of the adaptationist program. Sometimes high level kinds are multiply realised by lower level kinds: I argue that this is central to the understanding of macroevolution. (shrink)

Modern biology is ambivalent about the notion of evolutionary progress. Although most evolutionists imply in their writings that they still understand large-scale macroevolution as a somewhat progressive process, the use of the term “progress” is increasingly criticized and avoided. The paper shows that this ambivalence has a long history and results mainly from three problems: (1) The term “progress” carries historical, theoretical and social implications which are not congruent with modern knowledge of the course of evolution; (2) An incongruence (...) exists between the notion of progress and Darwin’s theory of selection; (3) It is still not possible to give more than a rudimentary definition of the general patterns that were generated during the macroevolution of organisms. The paper consists of two parts: the first is a historical overview of the roots of the term “progress” in evolutionary biology, the second discusses epistemological, ontological and empirical problems. It is stated that the term has so far served as a metaphor for general patterns generated amongst organisms during evolution. It is proposed that a reformulation is needed to eliminate historically imported implications and that it is necessary to develop a concept for an appropriate empirical description of macroevolutionary patterns. This is the third way between, on the one hand, using the term indiscriminately and, on the other hand, ignoring the general patterns that evolution has produced. (shrink)

The idea of genetic assimilation, that environmentally induced phenotypes may become genetically fixed and no longer require the original environmental stimulus, has had varied success through time in evolutionary biology research. Proposed by Waddington in the 1940s, it became an area of active empirical research mostly thanks to the efforts of its inventor and his collaborators. It was then attacked as of minor importance during the ‘‘hardening’’ of the neo-Darwinian synthesis and was relegated to a secondary role for decades. Recently, (...) several papers have appeared, mostly independently of each other, to explore the likelihood of genetic assimilation as a biological phenomenon and its potential importance to our understanding of evolution. In this article we briefly trace the history of the concept and then discuss theoretical models that have newly employed genetic assimilation in a variety of contexts. We propose a typical scenario of evolution of genetic assimilation via an intermediate stage of phenotypic plasticity and present potential examples of the same. We also discuss a conceptual map of current and future lines of research aimed at exploring the actual relevance of genetic assimilation for evolutionary biology. (shrink)

This chapter introduces the main research schools and paradigms along which the field of evolutionary biology has been developing. Evolutionary thinking was originally founded upon the Neo-Darwinian paradigm that combines the teachings of traditional Darwinism with those of the Modern Synthesis. The Neo-Darwinian paradigm has since further diversified into the Micro-, Meso-, and Macroevolutionary schools, and it has also started to integrate the school of Ecology. Together, these schools establish the paradigm called Ecological Evolutionary Developmental Biology (Eco-Evo-Devo). A final school (...) studies Reticulate Evolution as it occurs by means of symbiosis, symbiogenesis, lateral gene transfer, infective heredity, and hybridization. This chapter reviews the major tenets and points of differentiation that exist between these distinct evolution schools. The chapter ends by looking into how evolution can be defined and how distinct units, levels, and mechanisms underlie theorizing on evolutionary hierarchies and evolutionary causation. The following chapter examines how the different evolution schools are implemented into the symbolic sciences. (shrink)

This major new series in the philosophy of science aims to provide a new generation of textbooks for the subject. The series will not only offer fresh treatments of core topics in the theory and methodology of scientific knowledge, but also introductions to newer areas of the discipline. Furthermore, the series will cover topics in current science that raise significant foundational issues both for scientific theory and for philosophy more generally. Biology raises distinct questions of its own not only for (...) philosophy of science, but for metaphysics, epistemology and ethics. This comprehensive new textbook for a rapidly growing field of study provides students new to the subject with an up-to-date presentation of the key philosophical issues. Care is taken throughout to keep the technicalities accessible to the non-biologist but without sacrificing the philosophical subtleties. The first part of the book covers the philosophical challenges posed by evolution and evolutionary biology, beginning with Darwin's central argument in the Origin of the Species. Individual chapters cover natural selection, the selfish gene, alternative units of selection, developmental systems theory, adaptionism and issues in macroevolution. The second part of the book examines philosophical questions arising in connection with biological traits, function, nature and nurture, and biological kinds. The third part of the book examines metaphysical questions, biology's relation with the traditional concerns of philosophy of science, and how evolution has been introduced into epistemological debates. The final part considers the relevance of biology to questions about ethics, religion and human nature. (shrink)

This major new series in the philosophy of science aims to provide a new generation of textbooks for the subject. The series will not only offer fresh treatments of core topics in the theory and methodology of scientific knowledge, but also introductions to newer areas of the discipline. Furthermore, the series will cover topics in current science that raise significant foundational issues both for scientific theory and for philosophy more generally. Biology raises distinct questions of its own not only for (...) philosophy of science, but for metaphysics, epistemology and ethics. This comprehensive new textbook for a rapidly growing field of study provides students new to the subject with an up-to-date presentation of the key philosophical issues. Care is taken throughout to keep the technicalities accessible to the non-biologist but without sacrificing the philosophical subtleties. The first part of the book covers the philosophical challenges posed by evolution and evolutionary biology, beginning with Darwin's central argument in the Origin of the Species. Individual chapters cover natural selection, the selfish gene, alternative units of selection, developmental systems theory, adaptionism and issues in macroevolution. The second part of the book examines philosophical questions arising in connection with biological traits, function, nature and nurture, and biological kinds. The third part of the book examines metaphysical questions, biology's relation with the traditional concerns of philosophy of science, and how evolution has been introduced into epistemological debates. The final part considers the relevance of biology to questions about ethics, religion and human nature. (shrink)

In the first part of this article we survey general similarities and differences between biological and social macroevolution. In the second (and main) part, we consider a concrete mathematical model capable of describing important features of both biological and social macroevolution. In mathematical models of historical macrodynamics, a hyperbolic pattern of world population growth arises from non-linear, second-order positive feedback between demographic growth and technological development. Based on diverse paleontological data and an analogy with macrosociological models, (...) we suggest that the hyperbolic character of biodiversity growth can be similarly accounted for by non-linear, second-order positive feedback between diversity growth and the complexity of community structure. We discuss how such positive feedback mechanisms can be modelled mathematically. (shrink)

In the first part of this article we survey general similarities and differences between biological and social macroevolution. In the second (and main) part, we consider a concrete mathematical model capable of describing important features of both biological and social macroevolution. In mathematical models of historical macrodynamics, a hyperbolic pattern of world population growth arises from non-linear, second-order positive feedback between demographic growth and technological development. Based on diverse paleontological data and an analogy with macrosociological models, (...) we suggest that the hyperbolic character of biodiversity growth can be similarly accounted for by non-linear, second-order positive feedback between diversity growth and the complexity of community structure. We discuss how such positive feedback mechanisms can be modelled mathematically. (shrink)

In the first part of this article we survey general similarities and differences between biological and social macroevolution. In the second (and main) part, we consider a concrete mathematical model capable of describing important features of both biological and social macroevolution. In mathematical models of historical macrodynamics, a hyperbolic pattern of world population growth arises from non-linear, second-order positive feedback between demographic growth and technological development. This is more or less identical with the working of the (...) collective learning mechanism. Based on diverse paleontological data and an analogy with macrosociological models, we suggest that the hyperbolic character of biodiversity growth can be similarly accounted for by non-linear, second-order positive feedback between diversity growth and the complexity of community structure, suggesting the presence within the biosphere of a certain analogue of the collective learning mechanism. We discuss how such positive feedback mechanisms can be modelled mathematically. (shrink)

The genetic equidistance result shows that different species are approximately equidistant to a simpler outgroup in protein sequence similarity, as first reported by Margoliash in 1963. This result, together with those of Zuckerkandl and Pauling in 1962 inspired the molecular clock and in turn the neutral theory of evolution. Here it is shown that the clock/neutral theory had from the beginning overlooked another characteristic of the equidistance result, the overlap feature, which shows a large number of overlapped mutant amino acid (...) positions where any pair of any three species is different provided that the species concerned differ from one another in complexity as a result of macroevolution. In contrast, when simple organisms of similar complexity and short evolutionary divergence are compared, there are only a small number of overlaps largely consistent with chance or the neutral theory. The full reality of the equidistance result strongly supports the Maximum Genetic Diversity hypothesis, a more complete account of hereditary changes. (shrink)

It is commonly accepted by those who consider macroevolution as a process decoupled from microevolution that its apparent jerkiness (and, hence, incompatibility with principles of population genetics) results from the structural complexity of epigenetic systems, since all complex cybernetic systems are expected to behave discontinuously. To analyse the validity of this assumption, the process of self-improvement has been analysed in a complex cybernetic system by means of computer simulations. It turns out that the investigated system tends to develop by (...) accumulation of as small structural changes as possible, while larger changes are likely to result in the collapse of the system rather than in its persistence or improvement. This implies that cybernetic considerations alone cannot justify the claim that the very nature of epigenetic systems induces evolution by discrete steps rather than by gradual accumulation of small changes. (shrink)

Biology is seen not merely as a privileged oppressor of women but as a co-victim of masculinist social assumptions. We see feminist critique as one of the normative controls that any scientist must perform whenever analyzing data, and we seek to demonstrate what has happened when this control has not been utilized. Narratives of fertilization and sex determination traditionally have been modeled on the cultural patterns of male/female interaction, leading to gender associations being placed on cells and their components. We (...) also find that when gender biases are controlled, new perceptions of these intracellular and extracellular relationships emerge. (shrink)

Evolutionary biology since Darwin has seen a dramatic entrenchment and elaboration of the role of chance in evolution. It is nearly impossible to discuss contemporary evolutionary theory in any depth at all without making reference to at least some concept of “chance” or “randomness.” Many processes are described as chancy, outcomes are characterized as random, and many evolutionary phenomena are thought to be best described by stochastic or probabilistic models. Chance is taken by various authors to be central to the (...) understanding of fitness, genetic drift, macroevolution, mutation, foraging theory, and environmental variation, to take but a few examples. And for each of these notions, there are yet more stories to tell. Each weaves itself into the various branches of evolutionary theory in myriad different ways, with a wide variety of effects on the history and current state of life on Earth. Each is grounded in a particular trajectory in the history of philosophy and the history of biology, and has inspired a variety of responses throughout science and culture. This book endeavors to offer a cross-section of biological, historical, philosophical, and theological approaches to understanding chance in evolutionary theory. (shrink)

The evolutionary synthesis of the 1930s and 1940s integrated the study of biological microevolution and biological macroevolution into the theoretically consistent and hugely productive field of evolutionary biology. A similar synthesis has yet to occur for the study of culture, and the social sciences remain fragmented and theoretically incompatible. Here, it is suggested that a Darwinian theory of cultural evolution can promote such a synthesis. Earlier non-Darwinian theories of cultural evolution, such as progress theories, lacked key elements (...) of a Darwinian theory of cultural evolution that are necessary to promote a synthesis, while other contemporary theories of cultural evolution, such as memetics, make too stringent neo-Darwinian assumptions that are inconsistent with evidence regarding cultural transmission. Several examples are given which indicate the beginnings of an evolutionary synthesis for culture, where patterns of cultural macroevolution have been explained in terms of underlying cultural microevolutionary forces. Finally, it is argued that experimental simulations of cultural evolution can play an important role in this emerging synthesis. (shrink)

Modern biology has not yet come to terms with the presence of many organic codes in Nature, despite the fact that we can prove their existence. As a result, it has not yet accepted the idea that the great events of macroevolution were associated with the origin of new organic codes, despite the fact that this is the most parsimonious and logical explanation of those events. This is probably due to the fact that the existence of organic codes in (...) all fundamental processes of life, and in all major transitions in the history of life, has enormous theoretical implications. It requires nothing less than a new theoretical framework, and that kind of change is inevitably slow. There are too many facts to reconsider, too many bits of history to weave together in a new mosaic. But this is what science is about, and the purpose of the present paper is to show that it can be done. More precisely, it is shown that the whole natural history of the brain can be revisited in the light of the organic codes. What is described here is only a bird’s-eye view of brain macroevolution, but it is hoped that the extraordinary potential of the organic codes can nevertheless come through. The paper contains also another message. The organic codes prove that life is based on semiosis, and are in fact the components of organic semiosis, the first and the most diffused form of semiosis on Earth, but not the only one. It will be shown that the evolution of the brain was accompanied by the development of two new types of sign processes. More precisely, it gave origin first to interpretive semiosis, mostly in vertebrates, and then to cultural semiosis, in our species. (shrink)

Contemporary evolutionary biology comprises a plural landscape of multiple co-existent conceptual frameworks and strenuous voices that disagree on the nature and scope of evolutionary theory. Since the mid-eighties, some of these conceptual frameworks have denounced the ontologies of the Modern Synthesis and of the updated Standard Theory of Evolution as unfinished or even flawed. In this paper, we analyze and compare two of those conceptual frameworks, namely Niles Eldredge’s Hierarchy Theory of Evolution (with its extended ontology of evolutionary entities) and (...) the Extended Evolutionary Synthesis (with its proposal of an extended ontology of evolutionary processes), in an attempt to map some epistemic bridges (e.g. compatible views of causation; niche construction) and some conceptual rifts (e.g. extra-genetic inheritance; different perspectives on macroevolution; contrasting standpoints held in the “externalism–internalism” debate) that exist between them. This paper seeks to encourage theoretical, philosophical and historiographical discussions about pluralism or the possible unification of contemporary evolutionary biology. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Where Do Substantial Forms Come From?—A Critique of the Theistic Evolution of Mariusz Tabaczek*Michael Chaberek O.P. and Monika Metlerska-ColerickIntroductionThe question posed in the present article is whether it is possible to be a proponent of theistic evolution and, at the same time, of the metaphysical [End Page 239] principles elaborated by St. Thomas Aquinas. The authors of Thomistic Evolution: a Catholic Approach to Understanding Evolution in the Light of (...) Faith, recently published in Polish, imply that Aquinas's doctrine was not only compatible with the idea of biological macroevolution, but also—on some level—endorsed it.1 In his "Afterword" to the above publication, Mariusz Tabaczek points out certain deficiencies in the argumentation provided by its authors, simultaneously underlining that he agrees with the book's principal thesis.I will not examine the book by the American Dominicans in this article because I have already addressed their arguments in full in my book entitled Aquinas and Evolution,2 where I demonstrated that it is impossible to be both a proponent of theistic evolution and a follower of the philosophical views proposed by St. Thomas. In his "Afterword," Tabaczek presents a contradictory thesis. He claims that being both of the above is possible, provided that one modifies St. Thomas's teaching in four "essential aspects." The very approach of this kind already raises doubts. After all, if St. Thomas's doctrine indeed needs to be modified in order to reconcile his thought with evolution, it suggests that, in fact, it cannot be reconciled with it. Therefore, perhaps the problem comes down to asking whether the four points of incompatibility indicated by Tabaczek really constitute an "essential" part of Aquinas's doctrine? If it is not the case, they might be omitted or modified. If, however, they relate to certain essential elements of Aristotelian-Thomistic metaphysics, disregarding them equals denying St. Thomas's teaching and, consequently, makes it impossible to reconcile it with theistic evolution.In order to settle the problem, I devote the first part of my article to determining whether the points presented by Tabaczek refer to the essential elements of Aquinas's discourse. In the second part of my text, however, I move to a more important point, namely the fact that theistic evolution encounters many more problems in the context of Thomistic metaphysics. Since I have already addressed this matter in several places,3 I limit the scope [End Page 240] of the second part of my article to only one such problem: the emergence of new substantial forms (new species) via the mechanism of evolution. Thus, the object of the present analysis is to examine whether the solution suggested by Tabaczek provides an explanation to the problem of the origin of new substantial forms in theistic evolution.Commentary on the Four Points of IncompatibilityAccording to Tabaczek, the teaching of St. Thomas can be reconciled with theistic evolution under the conditions of:(1) recognizing the possibility of the emergence of new species, that is, acknowledging that the perfection of the universe can increase every day not only in terms of the number of individual beings, but also as regards the number of species; (2) emphasizing the fact that God's initial act of creation is limited to the derivation of matter of the lowest degree of complexity out of nothing (ex nihilo); (3) recognizing the fact that the processes of chemical, biochemical, and biological evolution belong to the work of adornment (opus ornatus), whose subsequent stages spread out across the entire history of the universe and, therefore, are not limited to a finished and past time period; and finally (4) acknowledging that God's direct intervention in the creation of the first representatives of plant and animal species (with the exception of man) is not necessary.4Ad (1) and ad (3). Points 1 and 3 boil down to the same idea, since they are both concerned with the fact that evolution continues, whereas from the Christian perspective, the divine work of creation had already finished. Therefore, if one adopts theistic evolution, the Christian truth of God completing his creative work with the creation of man has to be rejected. The... (shrink)

Stephen Jay Gould argued that replaying the “tape of life” would result in a radically different evolutionary outcome. Some biologists and philosophers, however, have pointed to convergent evolution as evidence for robust replicability in macroevolution. These authors interpret homoplasy, or the independent origination of similar biological forms, as evidence for the power of natural selection to guide form toward certain morphological attractors, notwithstanding the diversionary tendencies of drift and the constraints of phylogenetic inertia. In this paper, I consider (...) the implications of homoplasy for the debate over the nature of macroevolution. I argue that once the concepts of contingency and convergence are fleshed out, it becomes clear that many instances of homoplasy fail to negate Gould’s overarching thesis, and may in fact support a Gouldian view of life. My argument rests on the distinction between parallelism and convergence, which I defend against a recent challenge from developmental biology. I conclude that despite the difficulties in defining and identifying parallelism, the concept remains useful and relevant to the contingency controversy insofar as it underscores the common developmental origins of iterated evolution. (shrink)

We have demonstrated, using the Cantor dust method, that the statistical distribution of appearance and disappearance of rodents species (Arvicolid rodent radiation in Europe) follows power laws strengthening the evidence for a fractal structure set. Self-similar laws have been used as model for the description of a huge number of biological systems. With Nottale we have shown that log-periodic behaviors of acceleration or deceleration can be applied to branching macroevolution, to the time sequences of major evolutionary leaps (global (...) life tree, sauropod and theropod dinosaurs postural structures, North American fossil equids, rodents, primates and echinoderms clades and human ontogeny). The Scale-Relativity Theory has others biological applications from linear with fractal behavior to non-linear and from classical mechanics to quantum mechanics. (shrink)

Philosophical naturalists claim macroevolution shows order emerging by pure chance. This claim is incompatible with accepted physical and biological principles. The present state of the universe is implicit in its initial state and the laws ofnature. Logical principles essential to science require these laws to be maintained by a self-conserving reality identifiable as God. Further, the laws share a common dynamic with human committed intentions. Both are logical propagators seen to the intentional by theists and naturalists alike. Mechanism (...) and teleology project a single reality into different conceptual spaces. Statistically, evolution is only possible given predefined goals. For fitness to be explanatory, it must be prior to survival events, entailing immanent goals verified by convergent evolution, toolkit genes, and evolutionary stasis. Aristotle's falsifiable claims for teleology are confirmed by evolution. Evolution is not random, but fully intentional, evidencing mind in nature. (shrink)

This paper offers a paleobiological perspective on the debate concerning the possible use of biotechnology to bring back extinct species. One lesson from paleobiology is that extinction selectivity matters in addition to extinction rates and extinction magnitude. Combining some of Darwin’s insights about artificial selection with the theory of species selection that paleobiologists developed in the 1970s and 1980s provides a useful context for thinking about de-extinction. Using recent work on the prioritization of candidate species for de-extinction as a test (...) case, the paper argues that de-extinction would be a form of artificial species selection in which humans influence which species persist vs. go extinct. This points to a serious gap in our ethical theory: Much work has been done to clarify the value of biological diversity, but we also need theoretical guidance for decisions that amount to species sorting, and that will shape the macroevolutionary future. (shrink)

Darwun, darwinism, and neo-darwinism; Genetic forces; neutralism and selection: a further synthesis; Natural selection; Genetic architecture; Species and macroevolution; Was darwin wrong after all; Envol.

Translation: How did life originate? What were the first life forms? How did the cells of our body evolve? Is natural selection the only mechanism whereby evolution occurs? What did Darwin mean with the term natural selection and do we still use that definition today? Does evolution occur slow or fast? Are we determined by our genes? We all ask ourselves these questions from time to time. Scientists however often get too technical and philosophers too speculative in their answers. This (...) book aims to form a bridge between the life and human sciences. Questions on the origin and evolution of life are analyzed critically from within different disciplines. The result is a state of the art, accessible for philosophers and scientists as well as non-academics. Many of the answered proposed can thereby be understood as complements, deviations and alternatives to the standard paradigm of biology, the Modern Synthesis. These deviating statements are bundles into 15 theses. The question then becomes in how far the Modern Synthesis should become the subject of revision based upon these theses. Original: Hoe is leven ontstaan? Welke vorm nam het eerste leven aan? Hoe ontstonden de cellen waaruit ons lichaam is opgebouwd? Is natuurlijke selectie het enige mechanisme waarlangs evolutie zich voordoet? Wat bedoelde Darwin met natuurlijke selectie en gebruiken we deze definitie vandaag nog? Voltrekt evolutie zich traag of snel? Worden we gedetermineerd door onze genen? We stellen ons allemaal deze vragen wel eens. Wetenschappers worden echter algauw te technisch en filosofen te speculatief bij het beantwoorden ervan. Dit boek wil een brug slaan tussen de natuurwetenschappen en de menswetenschappen en de vragen omtrent de oorsprong en evolutie van leven, kritisch en nuchter, vanuit verschillende disciplines analyseren. Het resultaat is een huidige stand van zaken, leesbaar, zowel voor filosofen als wetenschappers en ook voor de leek. Vele van de voorgestelde antwoorden kunnen daarbij begrepen worden als aanvullingen, afwijkingen of alternatieven van het standaardparadigma in de biologie: de Moderne Synthese. Deze afwijkende stellingen werden gebundeld in 15 thesen. De vraag is in hoeverre de Moderne Synthese, in relatie met deze thesen, onderwerp voor herziening moet zijn. (shrink)

Hierarchical expansions of the theory of natural selection exist in two distinct bodies of thought in evolutionary biology, the group selection and the species selection traditions. Both traditions share the point of view that the principles of natural selection apply at levels of biological organization above the level of the individual organism. This leads them both to considermultilevel selection situations, where selection is occurring simultaneously at more than one level. Impeding unification of the theoretical approaches of the multilevel selection (...) traditions are the different goals of investigators in the different subdisciplines and the different types of data potentially available for analysis. We identify two alternative approaches to multilevel situations, which we termmultilevel selection [1] andmultilevel selection [2]. Of interest in the former case are the effects of group membership onindividual fitnesses, and in the latter the tendencies for the groups themselves to go extinct or to found new groups (i.e., group fitnesses). We argue that: neither represents the entire multilevel selection process; both are aspects of any multilevel selection situation; and both are legitimate approaches, suitable for answering different questions. Using this formalism, we show that: multilevel selection [2] does not require emergent group properties in order to provide an explanatory mechanism of evolutionary change; multilevel selection [1] is usually more appropriate for neontological group selection studies; and species selection is most fruitfully considered from the point of view of multilevel selection [2]. Finally we argue that the effect hypothesis of macroevolution, requiring, in selection among species, both the absence of group effects on organismic fitness (multilevel selection [1]), and the direct determination of species fitnesses by those of organisms, is untestable with paleontological data. Furthermore, the conditions for the effect hypothesis to hold are extremely restrictive and unlikely to apply to the vast majority of situations encountered in nature. (shrink)