What are species? Are they objective features of the world? If so, what sort of features are they? Do everyday intuitions that species are real stand up to philosophical and scientific scrutiny? Two rival accounts of species' reality have dominated the discussion: that species are natural kinds defined by essential properties and that species are individuals. Unfortunately, neither account fully accommodates biological practice. In Are Species Real?, Slater presents a novel approach to this question (...) aimed at accommodating the attractions to both realism and antirealism about species. (shrink)

What are biological species? Aristotelians and Lockeans agree that they are natural kinds; but, evolutionary theory shows that neither traditional philosophical approach is truly adequate. Recently, Michael Ghiselin and David Hull have argued that species are individuals. This claim is shown to be against the spirit of much modern biology. It is concluded that species are natural kinds of a sort, and that any 'objectivity' they possess comes from their being at the focus of a consilience of (...) inductions. (shrink)

What are biological species? Aristotelians and Lockeans agree that they are natural kinds; but, evolutionary theory shows that neither traditional philosophical approach is truly adequate. Recently, Michael Ghiselin and David Hull have argued that species are individuals. This claim is shown to be against the spirit of much modern biology. It is concluded that species are natural kinds of a sort, and that any 'objectivity' they possess comes from their being at the focus of a consilience of (...) inductions. (shrink)

This paper proposes a new and testable view about the nature of species and other evolving lineages, according to which they are feedback systems. On this view, it is a mistake to think gene flow, niche sharing, and trait frequency similarities between populations are among variables that interact to cause some further downstream variable that distinguishes evolving lineages from each other, some sort of “species cohesion” for example. Instead, gene flow, niche sharing, similarities between populations, and other causal (...) variables feed into each other—instances of these at earlier times help cause instances of these same variables at later times. And any lineage-identifying cohesion just is the recurrence or cycling of these feedback relations within metapopulations over generations. Such cohesion can then be represented as variable M within multi-dimensional variable spaces, where values of M vary dynamically with the frequency and magnitude of feedback relations. Related conditions for being a species or other evolving lineage are then clarified. To argue for the development and testing of this view, the paper shows how it improves upon others. (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)

Species are central to biology, but there is currently no agreement on what the adequate species concept should be, and many have adopted a pluralist stance: different species concepts will be required for different purposes. This thesis is a multidimensional analysis of species pluralism. First I explicate how pluralism differs monism and relativism. I then consider the history of species pluralism. I argue that we must re-frame the species problem, and that re-evaluating Aristotle's role (...) in the histories of systematics can shed light on pluralism. Next I consider different forms of pluralism: evolutionary and extra-evolutionary species pluralism, which differ in their stance on evolutionary theory. I show that pluralism is more than a debate about the species category, but a debate about which concepts are legitimate and a claim about how they interact with one another. Following that, I consider what sort of ontology is required for different forms of species pluralism. I argue that pluralists who deny the unity of biology will require a further plurality of frameworks, while those that ground their pluralism in evolution need only one framework. Finally, I consider what pluralism means for biological practice. I argue that species concepts are tools, and reflect on how pluralism can illuminate the way systematists approach the discovery of new species of yeast. Pluralism can make sense of the way species concepts are used, and can be developed to aid researchers in thinking about how to use the right tools for the right jobs. (shrink)

Species pluralism allows for multiple species concepts. Given the overwhelming number of such concepts, this seems like an obvious interpretation of how `species' is used in contemporary biology. But why has it taken so long for this approach to be considered? I argue that part of the reason pluralism was overlooked due to the widespread use of a particular rhetorical strategy developed by Ernst Mayr. This strategy provided a framework for debates about the correct conception of (...) class='Hi'>species. That is, the strategy offered a means of comparing modern concepts with a monistic-essentialist understanding of species. I ask what would happen if we replaced this concept with Aristotle's own pluralist-essentialist understanding of species. As recent scholarship shows, Aristotle's philosophy of biology allows for an approach to classification that is in practice highly pluralistic. From this new framework we can understand what sort of assumptions are at stake between modern forms of species pluralism. My analysis shows that the essentialist story told by Mayr and others left us asking the wrong questions about how to conceive of species in an evolutionary world. Having a deeper understanding of Aristotle's approach to the classification of animals allows us to shift focus from the so-called species problem in order to raise four issues that are relevant to current debates. These are questions about: the explanatory power of taxonomic ranks, the importance of the species category problem, whether species are constituted by intrinsic or extrinsic properties, and how to interpret the ``cross-cutting'' metaphor endemic to the pluralist literature. In order to get to these questions I will first explain what sort of claim species pluralism is at the most general level, and a gloss on the standard interpretation of the historical shift from species monism to species pluralism. (shrink)

Among philosophers of science there seems to be a general consensus that understanding represents a species of knowledge, but virtually every major epistemologist who has thought seriously about understanding has come to deny this claim. Against this prevailing tide in epistemology, I argue that understanding is, in fact, a species of knowledge: just like knowledge, for example, understanding is not transparent and can be Gettiered. I then consider how the psychological act of "grasping" that seems to be characteristic (...) of understanding differs from the sort of psychological act that often characterizes knowledge. Zagzebski's account Kvanvig's account Two problems Comanche cases Unreliable sources of information The upper-right quadrant So is understanding a species of knowledge? A false choice. (shrink)

In this paper I build on Moor's idea that the task of computer ethics is to fill policy vacuum's created by the introduction of computer and information technology. The traditionalist account proposes that to solve computer ethical issues all we have to do is apply traditional moral norms and principles. I argue against this position and propose instead that we think of computer ethical issues as new species of generic moral problems. Computer technology changes the instrumentation of human action. (...) The new instrumentation changes the composition of action and it creates the possibility of actions and arrangements that were not possible before. Ethical analysis has not traditionally or explicitly focused on the instrumentation of action. Human action instrumented with computer technology is, nevertheless, human action. The ethical issues that arise can be understood in traditional moral terms though they often have features that are new and unusual. The ethical issues are new species of traditional moral issues. (shrink)

For nearly five years, from Dec. 27, 1831, until Oct. 2, 1836, I served as naturalist aboard the H.M.S. Beagle, exploring. During that voyage I was much amazed by how the various types of organisms were distributed around South America, and how the animals and plants presently living on that continent are related to those found only as fossils in the geological record elsewhere. These facts, as will be seen in later chapters, seemed to me to throw some light on (...) the origin of species-that "mystery of mysteries," as it has been called by one of our greatest scientists, John Herschel. After I returned home, it occurred to me in 1837 that I might be able to help address this great question by patiently accumulating and reflecting on all sorts of facts that might have any bearing on it. Finally, after five years of work, I allowed myself to speculate on the subject and wrote up some brief notes. I enlarged these in 1844 into a sketch of the conclusions that seemed to be most probable from the evidence I had collected. Over the subsequent 15 years I have steadily pursued the same object: trying to understand how new species come about. I hope you will excuse me for entering these personal details of my work, as I give them only to show that I have not been hasty in coming to a decision. (shrink)

Pluralisms of various sorts are popular in philosophy of science, including those that imply some scientific concept x should be eliminated from science in favour of a plurality of concepts x1, x2, … xn. This article focuses on influential and representative arguments for such eliminative pluralism about the concept species. The main conclusions are that these arguments fail, that all other extant arguments also fail, and that this reveals a quite general dilemma, one that poses a defeasible presumption against (...) many eliminative pluralisms about various scientific concepts. The article ends by outlining a novel integrative alternative in defence of species. 1) Introduction 2) The species Concept, the Category ‘Species’, and the ‘Species’ Category Problem 3) What Are Eliminative Pluralism about species, and the Arguments for It? 4) Evaluation of Arguments 4.1 Splitting? 4.2 Lumping? 4.3 The eliminative pluralist’s dilemma 5) More General Lessons6Species Cohesion: An Integrative Alternative7Conclusion. (shrink)

For nearly five years, from Dec. 27, 1831, until Oct. 2, 1836, I served as naturalist aboard the H.M.S. Beagle, exploring. During that voyage I was much amazed by how the various types of organisms were distributed around South America, and how the animals and plants presently living on that continent are related to those found only as fossils in the geological record elsewhere. These facts, as will be seen in later chapters, seemed to me to throw some light on (...) the origin of species-that "mystery of mysteries," as it has been called by one of our greatest scientists, John Herschel. After I returned home, it occurred to me in 1837 that I might be able to help address this great question by patiently accumulating and reflecting on all sorts of facts that might have any bearing on it. Finally, after five years of work, I allowed myself to speculate on the subject and wrote up some brief notes. I enlarged these in 1844 into a sketch of the conclusions that seemed to be most probable from the evidence I had collected. Over the subsequent 15 years I have steadily pursued the same object: trying to understand how new species come about. I hope you will excuse me for entering these personal details of my work, as I give them only to show that I have not been hasty in coming to a decision. (shrink)

. New insights about a variety of epistemological topics including skepticism, peer disagreement, and the nature of knowledge emerge when we give the right sort of attention to our epistemic immaturity at the species level. This large-scale developmentalist concern illustrates a new way of doing epistemology, here called big epistemology.

This paper isolates a hard, long-standing species problem: developing a comprehensive and exacting theory about the constitutive conditions of the species category, one that is accurate for most of the living world, and which vindicates the widespread view that the species category is of more theoretical import than categories such as genus, sub-species, paradivision, and stirp. The paper then uncovers flaws in several views that imply we have either already solved that hard species problem or (...) dissolved it altogether – so-called We Are Done views. In doing so the paper offers new criticisms of the general lineage species concept (GLSC), evolutionary species concept (EvSC), biological species concept (BSC), other similar concepts, Ereshefsky’s eliminative pluralism about the species category, and both Mishler’s pessimism and Wilkins’ phenomenalism about that category. Opposed to We Are Done views, the paper argues for a Revving Up view, on which we are nearly ready to begin the hard species problem in earnest. To help work towards these conclusions, the paper begins with an outline of a new kind of view of species (Barker 2019a), which proposes they are feedback systems of a mathematically specifiable and empirically testable sort. (shrink)

It is sometimes claimed that as members of the species Homo sapiens we have a responsibility to promote the good of Homo sapiens itself (distinct from the good of its individual members). Lawrence Johnson has recently defended this claim as part of his approach to resolving the problem of future generations. We show that there are several difficulties with Johnson's argument, many of which are likely to attend any attempt to establish the moral considerability of Homo sapiens or (...) class='Hi'>species generally. Further, even if Homo sapiens were morally considerable, this would not ground an adequate response to the problem of future generations. The sort of moral considerability that would be appropriate to Homo sapiens, or species generally, would not be as robust nor have the implications that many have supposed. (shrink)

Culture, livelihoods and political-economic status all influence people's perception of introduced and invasive species, shaping perspectives on what sort of management of them, if any, is warranted. Indigenous voices and values are under-represented in scholarly discourse about introduced and invasive species. This paper examines the relationship between the Xeni Gwet'in First Nation (one of six Tsilhqot'in communities) and wild or free-roaming horses in British Columbia, Canada. We outline how Xeni Gwet'in people value horses and experience management actions, contextualising (...) the controversy over wild horses amidst power imbalances in the expression of environmental values. We suggest that Indigenous voices are vital to include when evaluating impacts of controversial species and developing management strategies. (shrink)

As we now know, most, if not all, philosophers in the High Middle Ages agreed that what we immediately perceive are external objects and that the immediate object of perception must not be some image present to the mind. Yet most — but not all — philosophers in the High Middle Ages also held, following Aristotle, that perception is a process wherein the percipient takes on the likeness of the external object. This likeness — called a species — is (...) a representation (of some sort) by means of which we immediately perceive external objects. But how can perception be at once direct — or immediate — and at the same time by way of representations? The usual answer here was that the species represents the external object to some percipient even though the species itself is not at all perceived: the species is that by which I perceive and not that which I perceive. John Buridan defends this traditional view — call it direct realism with representations. However, just a couple of decades before Buridan, one of the more important philosophers at Paris, Durand of St.-Pourçain, had already rejected direct realism with representation. Durand defends what I will call direct realism without representations. On his view, a species is not at all necessary during overtly direct forms of perception, neither as cause nor as representation. This paper has two parts. In the first part, I will discuss some of the more interesting arguments that Durand makes against direct realism with representations. In the second part, I will look at Buridan's defense of the view. -/- . (shrink)

In this paper Animalism is analysed. It will be argued that Animalism is correct in claiming (i) that being of a certain sort of animal S is a fundamental individuative substance sortal concept (animal of the species Homo Sapiens), (ii) that this implies that Animalism is correct in claiming that persons such as us are, by necessity, human beings, (iii) that remaining the same animal is a necessary condition for our identity over time. Contrary to Animalism it will be (...) argued that this does not imply that person should be understood as a phased sortal concept. It will be argued that Animalism rests upon a prior conception of person, and that this implies that person must be understood as a basic substance sortal concept through which we have to individuate ourselves and others. It is further argued that this, together with the insights of Animalism, implies that persons, by necessity, are beings of a biological nature. (shrink)

It is often claimed that classification, on Locke’s view, proceeds by attending to similarities between things, and it is widely argued that nothing about the sensible similarities between things determines how we are to sort them, in which case sorting substances at the phenomenal level must be arbitrary. However, acquaintance with the “internal” or hidden qualities of substances might yet reveal objective boundaries. Citing what I refer to as the Watch passage in Locke’s Essay (henceforth Watches), many commentators claim (...) that classification at the microphysical level must also be arbitrary. They conclude that sorting is arbitrary at any level of description. I refer to this as the standard reading of Locke on classification. In this paper I argue that Locke does not claim that sorting is arbitrary, either at the phenomenal level, or at the microphysical level. First, Locke does not claim in Watches that sorting is arbitrary at the microphysical level. The existence or nonexistence of objective boundaries at the microphysical level is not Watches’ topic and the passage is in fact silent on that question. Here, the standard reading mistakes a claim about the nature of the task of locating “specific differences” for a claim about the nature of the task of classification. This diagnosis proves instructive, for I argue that a similar conflation underwrites the standard reading’s claim that sorting at the phenomenal level must be arbitrary. Far from arbitrarily choosing how to sort things in terms of their phenomenal similarities, Locke thought that the mind simply follows nature’s lead. This characterization of the mind’s activity, I go on to argue, accords well with Locke’s claim that species are the workmanship of the understanding. (shrink)

Decoding the function and meaning of a foreign culture's sounds and gestures is a notoriously difficult problem. It is even more challenging when we think about the sounds and gestures of nonhuman animals. This essay provides a review of what is currently known about the informational content and function of primate vocalizations, emphasizing the problems underlying the construction of a primate “dictionary.” In contrast to the Oxford English Dictionary, this dictionary provides entries to emotional expressions as well as potentially referential (...) expressions. It therefore represents a guide to what animals do with their vocalizations, as well as how they are represented by signalers and perceivers. I begin by a discussion of the unit problem, of how an acoustic space is carved up into functionally significant components leading to a species‐specific repertoire or lexicon of sorts. This section shows how little we know about the units of organization within animal vocal repertoires, and how such lack of information constrains our ability to tackle the problem of syntactic structure. In Section III, I review research on the production and perception of vocal signals that appear to be functionally referential. This work shows that several nonhuman primates produce vocalizations that share some of the key properties of reference, but certainly not all; the components that are missing raises questions about their role as precursors to human words. In Section IV, I explore the social uses of vocalizations, assessing whether the signal contains sufficient information for listeners to judge a caller's credibility; ultimately, caller credibility determines how receivers select an appropriate response. Results show that individuals can use calls to assess whether someone is reliable or unreliable, and that such attributes are associated with individuals and particular contexts. I conclude by synthesizing the issues presented and then raise some directions for future conceptual and methodological progress. (shrink)

State-directed but market-oriented forms of regulation, especially environmental examples like cap-and-trade and ecological offsetting, have proliferated in the past two decades, but sociologists have been slow to theorize these broad institutional shifts. This article offers a framework for explaining these processes of regulatory marketization. First, I argue that institutions of this sort are examples of what I call command-and-commodify regulation, a mode of regulation that distinctively hybridizes economic and authoritative dimensions of power. Second, I explain how and why one example (...) of command-and-commodify regulation, species conservation banking, emerged and remained concentrated in California, but did not so easily develop in other American states. Finally, abstracting from the case, I argue that the concept of market reconstruction is useful for developing a more general theory of the ways that social conflicts and mobilization reconfigure regulatory power and thus give rise to new modes of regulation. Together, a theory of command-and-commodify regulation and market reconstruction may be useful for explaining the development of a wide variety of environmentally focused and other regulatory institutions. (shrink)

Recent findings have provided evidence for the existence of non‐vertebrate acquired immunity. We survey these findings and propose that all living organisms must express both innate and acquired immunity. This is opposed to the paradigm that only vertebrates manifest the two forms of immune mechanism; other species are thought to use innate immunity alone. We suggest new definitions of innate and acquired immunity, based on whether immune recognition molecules are encoded in the inherited genome or are generated through somatic (...) processes. We reason that both forms of immunity are similarly ancient, and have co‐evolved in response to lifestyle, cost‐benefit tradeoffs and symbiosis versus parasitism. However, different species have evolved different immune solutions that are not necessarily genetically related, but serve a similar general function – allowing individuals to learn from their own immune experience; survival of species is contingent on the acquired immune experience of its individuals. (shrink)

Scotus holds that dispositional and occurrent cognitions are qualities that inhere in the soul. These qualities have semantic or conceptual content. I show that such content is nothing in any sense real, and that this content consists either in the relevant quality’s being measured by an extramental object, or in its being such that it would be measured by such an object in the case that there were such an object. The measurement relation, in the case of an intelligible (...) class='Hi'>species, is secured by the species’s internal structure; in the case of an act of cognition, it is secured either by some sort of relation to a species, or by a relation to an external object. (shrink)

Artificial grammar learning (AGL) is used to study how human adults, infants, animals or machines learn various sorts of rules defined over sounds or visual items. Ten Cate et al. introduce the topic and provide a critical synthesis of this important interdisciplinary area of research. They identify the questions that remain open and the challenges that lie ahead, and argue that the limits of human, animal and machine learning abilities have yet to be found.

This paper develops a critical response to John Beatty’s recent (2006) engagement with Stephen Jay Gould’s claim that evolutionary history is contingent. Beatty identifies two senses of contingency in Gould’s work: an unpredictability sense and a causal dependence sense. He denies that Gould associates contingency with stochastic phenomena, such as drift. In reply to Beatty, this paper develops two main claims. The first is an interpretive claim: Gould really thinks of contingency has having to do with stochastic effects at the (...) level of macroevolution, and in particular with unbiased species sorting. This notion of contingency as macro-level stochasticity incorporates both the causal dependence and the unpredictability senses of contingency. The second claim is more substantive: Recent attempts by other scientists to put Gould’s claim to the test fail to engage with the hypothesis that species sorting sometimes resembles a lottery. Gould’s claim that random sorting is a significant macroevolutionary phenomenon remains an intriguing and largely untested live hypothesis about evolution. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Hume's Moral Sentiments and the Structure of the Treatise LOUIS E. LOEB ACCORDING TO NORMAN KEMP SMITH and Thomas Hearn, Hume classified moral sentiments as direct passions.' According to Pb.II A,rdal, Hume classified the basic moral sentiments of approval and disapproval of persons as indirect passions. if either of these interpretations is correct, there is an intimate connection between Books II and 111 of Hume's Treatise. This is because (...) the direct and indirect passions (together with the will) are the subject of Book 11 and moral sentiments are discussed in Book 111. So if moral sentiments are special cases of either direct or indirect passions, the treatment of passions in Book Ii is central to the understanding of Book 111. 1 contend, on the contrary, that Hume's moral sentiments are neither direct nor indirect passions. Consequently, the connection between Books 11 and 111 of the Treatise is much less intimate than A,rdal and Hearn have recently suggested.' i. Hume's Classification of the Impressions of Reflection In the four paragraphs of II, i, I Hume provides an exhaustive "Division of the Subject"--the "subject" being "all the perceptions of the mind. ''4 Nowhere else in the Treatise is a complete "division" to be found. As A,rdal points out, such introductory chapters "are likely to be written after the bulk of the book has been completed, or at least to be carefully revised in the light of the main arguments in the book. ''~ For these reasons, there is a strong presumption that the "division" in!I, i, 1should be taken as canonical. Hume's "division" is straightforward. In the first paragraph, perceptions are divided into ideas and impressions; in the first and second paragraphs, impressions are divided into those of sensation and those of reflection; in the third paragraph, impressions of reflection are divided into the calm and the violent; in the fourth (as I am indebted to Wdham Frankena, Ronald Glossop, and Peter Jones for their most helpful comments. ' Norman Kemp Smith, The Philosophy of David Hume (New York: St. Martm'~ Press, 1966), pp. 167-168; and Thomas K. Hearn, Jr., "Ardal on the Moral Sentiments in Hume's rreattse," Phtlosophy 48 (1973):290. z Passton and Value m Hume's "Treatise" (Edinburgh: Edinburgh University Press, 1966), pp. I 1, 109-133. For a discussion heavily influenced by Ardal, see Stewart R. Sutherland, "Hume on Morality and the Emotions," Phllosophwal Quarterly 26 (1976) : 14-19 especially. ' See Ardal, pp. I-5, 109-133; and Hearn, pp. 288, 292. 9 A Treatise of Human Nature, ed. L. A. Selby-Bigge (Oxford: Clarendon Press, 1888), p. 275; hereafter cited as T followed by page number. 9 Ardal, p. 94. 13951 396 HISTORY OF PHILOSOPHY indicated by the last sentence of the third), the violent impressions of reflection are divided into the direct and the indirect. The structure is of a genus-species sort, and none of the distinctions cut across each other: J calm i sense of beauty and deformity (T, 276), moral sentiments impressions of reflection = emotions (secondary impressions) violent = passions direct indirect desire, aversion, grief, joy, pride, humility, love, hope, fear (T, 277, 439) hatred (T, 276-277) This classification is based upon the only natural reading of paragraph three and the first sentence of paragraph four of II, i, I. I quote this material, adding my own emphasis and deleting Hume's: The reflective impressions may be divided into two kinds, viz. the calm and the violent. Of the first kind is the sense of beauty and deformity in action, composition, and external objects. Of the second are the passions of love and hatred, grief and joy, pride and humility. This division is far from being exact. The raptures of poetry and music frequently rise to the greatest height; while those other impressions, properly called passions, may decay into so soft an emotion, as to become, in a manner, imperceptible. But as in general the passions are more violent than the emotions arising from beauty and deformity, these impressions have been commonly distinguish'd from each other. The subject of the human mind being so copious and various, I shall here take... (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)

The Gouldian argument for evolutionary contingency found in Wonderful Life can be dissected into three premises: palaeontological, macro-evolutionary, and developmental. Discussions of evolutionary contingency have revolved primarily around the developmental. However, a shift in methodological practice and new palaeontological evidence subsequent to the book’s publication appears to threaten the palaeontological premise that asserts high Cambrian disparity, or, roughly, that morphological differences between the Cambrian species were high. This presents a prima facie problem: Did the Cambrian consist of enough anatomical (...) variety to fuel a different outcome upon a replay of the tape of life? I investigate the role that disparity plays in the Gouldian argument for evolutionary contingency and conclude that the reduced disparity view does not undermine the argument, per se. As for the macro-evolutionary premise, Gould never offers any explicit justification for the idea that species sorting was indiscriminate or ‘lottery-like’ (though he certainly gestures at it). Putting aside the exegetical, I consider certain empirical avenues for underwriting the macro-evolutionary premise and argue that the most plausible route is to appeal to the special status of mass extinctions, a move that is not entirely unfamiliar to macro-evolutionists. That is, mass extinctions can be good sources of contingency due to their being ‘chancy’ in at least three respects. In sum, I update the palaeontological and macro-evolutionary premises as to reconstrue the Gouldian argument for evolutionary contingency in its strongest form. (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)

I spell out and update the individuality thesis, that species are individuals, and not classes, sets, or kinds. I offer three complementary presentations of this thesis. First, as a way of resolving an inconsistent triad about natural kinds; second, as a phylogenetic systematics theoretical perspective; and, finally, as a novel recursive account of an evolved character. These approaches do different sorts of work, serving different interests. Presenting them together produces a taxonomy of the debates over the thesis, and isolates (...) ways it has been productive. This goes to the larger point of this paper: a defense of the individuality thesis in terms of its utility, and an update of it in light of recent theoretical developments and empirical work in biology. (shrink)

The recognition of species proceeds by two fairly distinct phases: (1) the sorting of individuals into groups or basic taxa (‘discovery’) (2) the checking of those taxa as candidates for species-hood (‘justification’). The target here is a rational reconstruction of phase 1, beginning with a discussion of key terms. The transmission of ‘meaning’ is regarded as bimodal: definition states the intension of the term, and diagnosis provides a disjunction of criteria for recognition of its extension. The two (...) are connected by a spectrum, with purely theoretical definition at one pole and purely ‘operational’ diagnosis at the other, with the more operational elements explained by the more theoretical. The current plethora of species concepts provides a good example. Accepting the Ghiselin–Hull thesis, that a species is an individual, a basic taxon is therefore also an individual with organisms as its parts. In a generalised synchronic individual its parts are conceptually integrated by an integrating principle (IP), which consists of a relation applying within a plan or rule. Fully developed, such an IP ensures the maximisation of the information content of the individual. A diachronic individual is then the set of its component synchronic parts, and its IP is provided by near-identity in an appropriate space-time (not necessarily physical). The integration of parts of an individual is illuminated by Gasking's concept of a proper group (in this case a chain-group), whose members are related by the relation serially fitting together with, the IP completed by an appropriate plan or rule. Gasking also applied the term cluster to a proper group persisting over a substantial period of time, individuated by any member acting as focus. A basic taxon is therefore a cluster of individuals, integrated by the relation significantly taxonomically similar and the rule in character-space-time. The nature of those concepts is discussed and defended. A species will inherit certain of the attributes of the preceding basic taxon (taxa). In at least the synchronic version its parts (individuals) will resemble each other significantly, providing the intuitive applicability of ‘members of’ and ‘instances of’ a species. Also, the notion that a species’ name is given by pure ostension, via a name-bearer (holotype) is empirically incoherent: the name cannot be applied in practice without an appropriate set of diagnostic traits. (shrink)

According to Scotus, an intelligible species with universal content, inherent in the mind, is a partial cause of an occurrent cognition whose immediate object is the self-same species. I attempt to explain how Scotus defends the possibility of this causal activity. Scotus claims, generally, that forms are causes, and that inherence makes no difference to the capacity of a form to cause an effect. He illustrates this by examining a case in which an accident is an instrument of (...) a substance in the production of a certain sort of effect. All that is required is that the accident is relevantly joined to the substance, whether or not it inheres in the substance. Since intelligible species are bearers of semantic content, it follows that non-inherent objects of thought can also be the bearers of such content. Such objects are included in the mind without inherence, and the boundary between the mind and external reality is to this extent broken down. (shrink)

This is a selection of essays on moral responsibility that represent the major components of John Martin Fischer's overall approach to freedom of the will and moral responsibility. The collection exhibits the overall structure of Fischer's view and shows how the various elements fit together to form a comprehensive framework for analyzing free will and moral responsibility. The topics include deliberation and practical reasoning, freedom of the will, freedom of action, various notions of control, and moral accountability. The essays seek (...) to provide a foundation for our practices of holding each other (and ourselves) morally and legally accountable for our behavior. A crucial move is the distinction between two kinds of control. According to Fischer, "regulative control" involves freedom to choose and do otherwise ("alternative possibilities"), whereas "guidance control" does not. Fischer contends that guidance control is all the freedom we need to be morally responsible agents. Further, he contends that such control is fully compatible with causal determinism. Additionally, Fischer argues that we do not need genuine access to alternative possibilities in order for there to be a legitimate point to practical reasoning. Fischer's overall framework contains an argument for the contention that guidance control, and not regulative control, is associated with moral responsibility, a sketch of a comprehensive theory of moral responsibility (that ties together responsibility for actions, omissions, consequences, and character), and an account of the value of moral responsibility. On this account, the value of exhibiting freedom (of the relevant sort) and thus being morally responsible for one's behavior is a species of the value of artistic self-expression. (shrink)

Biological conservation has a long story, but what distinguishes Conservation Biology from previous conservation fields is its multidisciplinary scope and its character as a mission-oriented crisis discipline. These characteristics suggested the introduction of the metaphor of biological conservation as a sort of surgery. This paper is about the initial stages of such surgery. Firstly, some data about the so-called “Big Sixth”—the disease—will be presented together with some information about Conservation Biology—the surgeon. Then epistemic and epistemological difficulties in extinction assessment and (...) conservation prioritization, and triage in particular, will be pointed out. It will be argued that, while data deficiency arising from empirical and practical constraints can in principle be overcome, a different order of difficulties stems from the competition among several species concepts. In this case, it will be suggested that the extent of complications is of such significance to require a thorough re-assessment of the very nature of the patients, i.e., outside the metaphor, of the concept of species. (shrink)

The aim of this paper is to provide a complete Natural Kind Semantics for an Essentialist Theory of Kinds. The theory is formulated in two-sorted first order monadic modal logic with identity. The natural kind semantics is based on Rudolf Willes Theory of Concept Lattices. The semantics is then used to explain several consequences of the theory, including results about the specificity (species–genus) relations between kinds, the definitions of kinds in terms of genera and specific differences and the existence (...) of negative kinds. First, I show under which conditions the Hierarchy principle, which has been subjected to counterexamples in the literature, holds. I also show that a different principle about the species–genus relations between kinds, namely Kant’s Law, follows from the essentialist theory. Second, I introduce two new operations for kinds and show that they can be used to provide traditional definitions of kinds in terms of genera and specific differences. Finally, I show that these operations of specific difference induce, for each kind, a uniquely specified contrary kind and a uniquely specified subcontrary kind, which can be used as semantic values for non-classical predicate negations of kind terms. (shrink)

We have several intuitive paradigms of defeating evidence. For example, let E be the fact that Ernie tells me that the notorious pet Precious is a bird. This supports the premise F, that Precious can fly. However, Orna gives me *opposing* evidence. She says that Precious is a dog. Alternatively, defeating evidence might not oppose Ernie's testimony in that direct way. There might be other ways for it to weaken the support that Ernie's testimony gives me for believing F, without (...) the new evidence itself intuitively constituting reasons to believe one way or the other about Precious's flight ability. An example: Ursula tells me that Ernie has no idea what Precious's species is; he's just guessing. She may not herself want to or be in a position to weigh in about Precious's real species or flight ability. I call defeating evidence of this sort *undermining evidence. (shrink)

Una specie di favola, ispirata al Dialogus di Abelardo, per riflettere sul ruolo del cristianesimo nello sviluppo del pensiero filsofico medievale. La filosofia medievale è complessa e articolata come quella di ogni altro periodo storico e spesso, anziché porsi al servizio della teologia, si appoggia sui contenuti della fede per dare stabilità alle proprie ricerche. A sort of tale, inspired by the Abaelard's Dialogus, to consider the role of christianity in the development of the medieval philosophical thought. The medieval philosophy (...) is complex and articulated as that of any other historical period and often, instead of being at the service of theology, is founded on the contents of faith to give stability to its own research. (shrink)

Species evolve, very slowly, through selection of genes which give rise to phenotypes well adapted to their environments. The cultures, including the languages, of human communities evolve, much faster, maintaining at least a minimum level of adaptedness to the external, non- cultural environment. In the phylogenetic evolution of species, the transmission of information across generations is via copying of molecules, and innovation is by mutation and sexual recombination. In cultural evolution, the transmission of information across generations is by (...) learning, and innovation is by sporadic invention or borrowing from other cultures. This much is the foundational bedrock of evolutionary theory. But things get more complicated; there can be gene-culture co-evolution. Prior to the rise of culture, the physical environment is the only force shaping biological evolution from outside the organism, and cultures themselves are clearly constrained by the evolved biological characteristics of their members. But cultures become part of the external environment, and influence the course of biological evolution. For example, altruistic cultures with developed medical knowledge reduce the cost to the individual of carrying genes disposing to certain pathologies (such as diabetes); and such genes become more widespread in the populations maintaining such cultures. Assortative mating can affect biological evolution, and particular cultures may influence the factors which are sorted for in mating. (For a careful discussion of the effects of cultural evolution on natural selection, see Cavalli-Sforza and Bodmer, 1971:774- 804). This paper examines mechanisms involved in the co-evolution of a biological trait, the critical period for language acquisition, and a property of human cultures, the size of their languages. A gene/culture interaction will be shown that can be described as a kind of symbiosis, but perhaps more aptly as an `arms race'. In this introduction, we will sketch the basic mechanics of the interaction in very broad terms; the rest of the paper will explain and justify the details. The implications of our model for second language acquisition are given toward the end of the paper. (shrink)

While many aspects of cognition have been shown to be shared between humans and non-human animals, there remains controversy regarding whether the capacity to mentally time travel is a uniquely human one. In this paper, we argue that there are four ways of representing when some event happened: four kinds of temporal representation. Distinguishing these four kinds of temporal representation has five benefits. First, it puts us in a position to determine the particular benefits these distinct temporal representations afford an (...) organism. Second, it provides the conceptual resources to foster a discussion about which of these representations is necessary for an organism to count as having the capacity to mentally time travel. Third, it enables us to distinguish stricter from more liberal views of mental time travel that differ regarding which kind(s) of temporal representation is taken to be necessary for mental time travel. Fourth, it allows us to determine the benefits of taking a stricter or more liberal view of mental time travel. Finally, it ensures that disagreement about whether some species can mentally time travel is not merely the product of unrecognised disagreement about which temporal representation is necessary for mental time travel. We argue for a more liberal view, on the grounds that it allows us to view mental time travel as an evolutionarily continuous phenomenon, and to recognise that differences in the ways that organisms mentally time travel might reflect different temporal representations, or combinations thereof, that they employ. Our ultimate aim, however, is to create the conceptual framework for further discussion regarding what sorts of temporal representations are required for mental time travel. (shrink)

In this paper I examine Locke’s criticism of the view that some species of natural objects are determined by real essences, a view I call species realism. Most commentators have focused either on Locke’s putative objections to the realist’s claim that species determining real essences exist or on his semantic case against the assumption that our species terms can refer to real essences that determine species. I identify another objection, which, I argue, is independent from (...) both of these lines of criticism. This objection is essentially practical. It is based on the claim that adopting species realism has detrimental practical consequences: it undermines, Locke believes, our ability to sort particular natural objects into species. This alone, he argues, is already sufficient to set aside and ignore species realism when trying to sort objects into species. (shrink)

While the precipitous decline of biodiversity threatens life-sustaining processes and vast segments of the human population, concern about its loss remains extremely shallow. Nearly all motivational campaigns falsely assume that upon appreciating the relevant information, people will be sufficiently motivated to do something. But rational argumentation is doomed to fail, for there exists a motivational gap between a comprehension of the crisis and action taken based upon such knowledge. The origin of the gap lies neither in the quantity and quality (...) of information on the crisis, nor in the putative conflict between self-interest and morality. Instead, it lies in “remoteness conditions” which dissociate decision-makers from ecological damage and enfeeble incentive to correct it. The central remoteness conditions are spatial, temporal, and consequential. They can be eliminated by concretizing and particularizing earth others. While direct-experience, place-based educational programs satisfy the criteria, they are uncommon. There is also little opportunity for working adultsto engage in these sorts of activities. As such, the outlook for endangered species and humans in the developing world remains dire. (shrink)

According to the Dominican Thomas of Sutton (ca. 1250–1315), the reception of intelligible species in the potential intellect is in every point similar to the actualization of forms in matter, which means that the potential intellect remains completely passive through the whole process of concept acquisition. However, Sutton adds that when the intelligible species are stored in the memory and aggregate in logically organized clusters, thus becoming intellectual habitus, they have a way of being that is not found (...) in material things, namely, incomplete actuality. Without being properly speaking efficient causes of mental processes, they spontaneously tend to emerge by themselves into the light of awareness—even though other elements (other intelligible species, notably, or the will) may in fact block them. This special sort of self-actualization is compatible, Sutton thinks, with the passivity he ascribes to the potential intellect. (shrink)

A doctrine of intelligent design through evolution is not going to find many friends. It is destined to encounter opposition on all sides. Among scientists the backlog of evolution will have little patience for intelligent design. Among religiousists, many who form intelligent design have their doubts about evolution. In the general public s mind there is a diametrical opposition between evolution and intelligent design: one excludes the other. This book will argue that this view of the matter is not correct, (...) and that in actuality one can regard evolution itself as a pathway to intelligent design. We would do well to go beyond The Origin of Species and taking as our guide such works as W. Wentworth Thomson s On Growth and Form acknowledging that evolutionary adaptation can result in solutions of a sort that intelligence could readily ratify. Accordingly, what the present book seeks is a naturalization of Intelligent Design that sees such design as itself the result of natural and evolutionary processes.". (shrink)

The thesis of self-elusiveness says, roughly, that the self fails to be phenomenally manifest from the first-person perspective. This thesis has a long history. Yet many who endorse it do so only in a very specific sense. They say that the self fails to be phenomenally manifest as an object from the first-person perspective; they say that self-experience is not a species of ‘object-consciousness’. Yet if consciousness outstrips object-consciousness, then we are left with the possibility that there is another (...) sense in which the self is phenomenally manifest. Alas, efforts to articulate just what this form of self-experience comes to—often a holy grail of sorts for those in, and influenced by, the phenomenological tradition—have remained stubbornly obscure. This essay attempts a partial remedy. Taking a cue from Bernard Lonergan, I suggest that self-experience, while not a species of object-consciousness, is nonetheless partially grounded in it. The result is a view that is compatible with self-experience being representational and relational, contra tradition. (shrink)

In this paper I explore in a preliminary way the interconnections among narrative explanation, narrative value, free will, an immortality. I build on the fascinating an suggestive work of David Velleman. I offer the hypothesis that our acting freely is what gives our lives a distinctive kind of value - narrative value. Free Will, then, is connected to the capacity to lead a meaningful life in a quite specific way: it is the ingredient which, when aded to others, enows us (...) with a meaning over an above the cumulative value erived from ading together levels of momentary welfare. In acting freely, we are writing a sentence in the story of our lives, and the value of acting freely is thus a species of the value of artistic creativity or self-expression (understood appropriately). Finally, I contend that the fact that our lives are stories need not entail that they have endings, or that immortality would necessarily be unimaginable or essentially different from ordinary, finite human life. Yes, a certain sort of narrative understanding of our lives as a whole would be impossible in the context of immortality; but much of what we care about, and value, in our stories might remain. (shrink)

The paper seeks to develop an account of indexical phenomena based on the highly general theory of structure and dependence set forth by Husserl in his Logical Investigations. Husserl here defends an Aristotelian theory of meaning, viewing meanings as species or universals having as their instances certain sorts of concrete meaning acts. Indexical phenomena are seen to involve the combination of such acts of meaning with acts of perception, a thesis here developed in some detail and contrasted with accounts (...) of indexicals suggested by Frege, Wittgenstein and by the later Husserl himself in his Ideas I. Implications are drawn also for our understanding of the categorial grammar sketched by Husserl in his 4th Logical Investigation, as also for our understanding of the nature of proper names and other candidate indexical expressions. (shrink)

Humans have engaged in artistic and aesthetic activities since the appearance of our species. Our ancestors have decorated their bodies, tools, and utensils for over 100,000 years. The expression of meaning using color, line, sound, rhythm, or movement, among other means, constitutes a fundamental aspect of our species' biological and cultural heritage. Art and aesthetics, therefore, contribute to our species identity and distinguish it from its living and extinct relatives. Science is faced with the challenge of explaining (...) the natural foundations of such a unique trait, and the way cultural processes nurture it into magnificent expressions, historically and ethnically unique. How do the human mind and brain bring about these sorts of behaviors? What psychological and neural processes underlie the appreciation of painting, music, and dance? How does training modulate these processes? Are humans the only species capable of aesthetic appreciation, or are other species endowed with the rudiments of this capacity? Empirical examinations of such questions have a long and rich history in the discipline of psychology, the genesis of which can be traced back to the publication of Gustav Theodor Fechner's Vorschule der Aesthetik in 1876, making it the second oldest branch in experimental psychology. The Oxford Handbook of Empirical Aesthetics brings together leading experts in psychology, neuroimaging, art history, and philosophy to answer these questions. It provides the most comprehensive coverage of the domain of empirical aesthetics to date. With sections on visual art, dance, music, and many other art forms and aesthetic phenomena, the breadth of this volume's scope reflects the richness and variety of topics and methods currently used today by scientists to understand the way our mind and brain endow us with the faculty to produce and appreciate art and aesthetics. (shrink)

Recombination maps of ancestral species can be constructed from comparative analyses of genomes from closely related species, exemplified by a recently published map of the human‐chimpanzee ancestor. Such maps resolve differences in recombination rate between species into changes along individual branches in the speciation tree, and allow identification of associated changes in the genomic sequences. We describe how coalescent hidden Markov models are able to call individual recombination events in ancestral species through inference of incomplete lineage (...) sorting along a genomic alignment. In the great apes, speciation events are sufficiently close in time that a map can be inferred for the ancestral species at each internal branch ‐ allowing evolution of recombination rate to be tracked over evolutionary time scales from speciation event to speciation event. We see this approach as a way of characterizing the evolution of recombination rate and the genomic properties that influence it. (shrink)