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)

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)

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)

There is now widespread agreement that many non-human animals are sentient, and that this fact has important moral and political implications. This book is devoted to sketching what this 'sentientist politics' might look like.

Resumo Neste artigo, vamos considerar o recente debate na metafísica da evolução, no que diz respeito tanto à persistência como à “mudança” em espécies biológicas, segundo a tese que considera a espécie como o agregado de indivíduos. Centrar-nos-emos na proposta de Thomas Reydon, que argumenta que em biologia, o termo “espécie” refere-se a duas entidades biológicas, por si denominadas evolverons e phylons, que desempenham vários papéis epistemológicos em pelo menos duas disciplinas diferentes, nomeadamente na biologia sistemática e na biologia evolutiva. (...) Em particular, analisamos criticamente a alegação de Reydon, que estas duas entidades biológicas geraram um problema para a tese que sustém a equivalência entre duas teorias de persistência, desenvolvidas pela metafísica analítica contemporânea: o tri–Dimensionalismo e tetra–Dimensionalismo. Neste artigo, pretende-se restaurar a tese da equivalência metafísica, recorrendo a uma tripla estratégia: promover a ideia de que os evolverons e os “phylons” são duas dimensões de uma mesma realidade; recorrer a uma noção menos problemática noção de endurantismo e, por último, destacar alguns problemas que surgem dos exemplos biológicos empregues por Reydon para basear o desenvolvimento dos seus argumentos. Palavras-chave : conceito de espécie, endurantismo, equivalência metafísica entre 3D e 4D, espécies biológicas sincrónicas e diacrónicas, persistênciaIn this paper we revise a recent debate on the metaphysics of evolution pertaining to both the persistence and change of biological species, and the species-as-individuals thesis. We focus on Thomas Reydon’s proposal that, in biology, the term “species” refers to two different biological entities, which he calls evolverons and phylons, and plays different epistemological roles in at least two different disciplines in which it is used, namely, evolutionary and systematic biology. In particular, we critically revise Reydon’s claim that these two biological entities raise a problem for the thesis of the equivalence between the two theories of persistence developed in contemporary analytic metaphysics: three–dimensionalism and four–dimensionalism. In this paper, we aim to reinstate the thesis of metaphysical equivalence by a threefold strategy: motivation of the idea that evolverons and phylons are two dimensions of the same entity, shifting to a less problematic notion of endurance, and an exploration of doubts about the particular biological examples upon which Reydon bases his arguments. Keywords : 3D / 4D metaphysical equivalence, endurantism, persistence, species concept, synchronic and diachronic biological species. (shrink)

Fundamental aspects of human use of the environment can be explained by game theory. Game theory explains aggregate behaviour of the human species driven by perceived costs and benefits. In the 'game' of global environmental protection and conservation, the stakes are the living conditions of all species including the human race, and the playing field is our planet. The question is can we control humanity's hitherto endless appetite for resources before we irreparably harm the global ecosystem (...) and cause extinction of even more species? The central problem is that some proportion of the individuals or groups will behave selfishly. The inducement for using more than a fair share, or 'cheating', increases as that resource becomes rarer, thus the benefits of cheating increase. In addition, the total number of people is increasing, so the proportion of cheaters must decrease to even keep total resource use constant. Cost benefit analysis of the effect of regulation and incentives on potential cheaters may provide a rational approach to controlling environmental problems. While it is debatable that environmental values are constant across cultures, communal use of resources seems to follow global rules. Cooperative use and punishment of those who use more than their share appear to be ubiquitous in human societies. Schemes for controlling human impact on the global environment must take into consideration basic behaviours including development of social norms and the positive feedback created because resources become more valuable with increasing rarity leading to more incentive for consumption. (shrink)

Students of later medieval semantics are familiar with the controversy that developed at the end of the thirteenth century over the signification of names. The debate focused on the signification of common nouns such as ‘man’ and ‘animal’: Do they signify an extramental thing or a mental representation of an extramental thing?Some authors at the end of the thirteenth century also discussed another question concerning what names signify, that is, whether they signify the composite of matter and form or only (...) the form of the composite. This second debate will not be considered in this article. Duns Scotus is commonly recognized as having played an important role in this debate.See Costantino Marmo, “Ontology and Semantics in the Logic of Duns Scotus,” in Umberto Eco and Costantino Marmo, ed., On Medieval Theory of Signs, (Amsterdam and Philadelphia: John Benjamins, 1989), pp. 161–63; and esp. Dominik Perler, “Duns Scotus on Signification,” Medieval Philosophy and Theology 3 (1993): 97–120. On the topic in general, see Paul Vincent Spade, “The Semantics of Terms,” in N. Kretzmann, A. Kenny, J. Pinborg, eds., The Cambridge History of Later Medieval Philosophy (Cambridge: Cambridge U.P., 1982), pp. 188–90; Jan Pinborg, “Bezeichnung in der Logik des XIII. Jahrhunderts,” in Albert Zimmermann, ed., Der Begriff der Repraesentatio im Mittelalter, Miscellanea Mediaevalia 8 (Berlin and New York: de Gruyter, 1971): 238–81; Elizabeth J. Ashworth, “Signification and Modes of Signifying in Thirteenth-Century Logic: A Preface to Aquinas on Analogy,” Medieval Philosophy and Theology 1 (1991): 43–53; Claude Panaccio, “From Mental Word to Mental Language,” Philosophical Topics 20 (1992): 125–47. In his Ordinatio, he alludes to a magna altercatio among his contemporaries concerning signification.John Duns Scotus, Ordinatio 1.27.1–3 n.83, in Commissio Scotistica, ed, Opera omnia 6 (Vatican City: Typis Polyglottis, 1963), p. 97. What is more, he gives, in his two commentaries on Aristotle’s Peri hermeneias, a detailed and fair analysis of the two contrasting positions on this issue.John Duns Scotus, Super Peri hermeneias 1.2, and Super Peri hermeneias 2.1, in Opera omnia 1 (Paris: L. Vivès, 1891), pp. 540–44, 582–85. Scotus’s logical commentaries are usually thought to have been composed before his theological writings, in the last decade of the thirteenth century. (shrink)

From island biogeography theory, the ethic of organic diversity was posited as a precept to guide applied biogeography. It states that humanity must act in such a way as to reduce the rate of worldwide species extinction for an indefinite period of time. Almost 50 years later, the ethic of organic diversity remains relevant in the context of the debate over species translocation practices. Ultimately, matters of biodiversity conservation are too complex to expect an exceptionless moral framework (...) to determine whether species translocation is acceptable in every situation. Instead, individual cases should be judged based on the adequacy of their decision-making processes. (shrink)

Perhaps the most readable and accessible of the great works of scientific imagination, The Origin of Species sold out on the day it was published in 1859. Theologians quickly labeled Charles Darwin the most dangerous man in England, and, as the Saturday Review noted, the uproar over the book quickly "passed beyond the bounds of the study and lecture-room into the drawing-room and the public street." Yet, after reading it, Darwin's friend and colleague T. H. Huxley had a different (...) reaction: "How extremely stupid not to have thought of that." Based largely on Darwin's experience as a naturalist while on a five-year voyage aboard H.M.S. Beagle, The Origin of Species set forth a theory of evolution and natural selection that challenged contemporary beliefs about divine providence and the immutability of species. A landmark contribution to philosophical and scientific thought, this edition also includes an introductory historical sketch and a glossary Darwin later added to the original text. Charles Darwin grew up considered, by his own account, "a very ordinary boy, rather below the common standard of intellect." A quirk of fate kept him from the career his father had deemed appropriate--that of a country parson--when a botanist recommended Darwin for an appointment as a naturalist aboard H.M.S. Beagle from 1831 to 1836. Darwin is also the author of the five-volume work Zoology of the Voyage of the Beagle (1839) and The Descent of Man (1871). (shrink)

Intraspecific niche variation can differentially impact community processes and can represent the initial stages of adaptive radiation. Here we test for intraspecific differences in niche use in a keystone species, the alewife (Alosa pseudoharengus). To test whether feedbacks between predator foraging traits and prey communities have led to differences in niche use, we compare the diet composition and trophic position of anadromous and landlocked alewife populations. These populations differ in phenotypic traits related to foraging (gill raker spacing, gape width, (...) and prey selectivity). Trait differences appear to have resulted from eco-evolutionary feedbacks between alewives and their zooplankton prey, and suggest that these two life history forms are exploiting different niches. Direct diets show that anadromous alewives consume a greater biomass of predatory copepods than do landlocked alewives. Anadromous alewives also consume more ostracods—a littoral prey item—as the growing season progresses. These diet differences do not translate into a significant difference in trophic position, as estimated from stable isotopes. However, stable-isotope estimates of diet source show that during early fall, anadromous alewives obtain significantly more of their dietary carbon from the littoral food web. This increased reliance on littoral prey is likely a result of a diet switch that occurs in response to the alewife-driven exhaustion of large-bodied prey items available in the pelagic zone, i.e., alewife niche construction. These findings show the existence of important intraspecific niche differences in the alewife and support the role of eco-evolutionary feedbacks in shaping these niche differences. The initiation of alewife divergence is the result of dam building by humans. Therefore, alewife niche differentiation can be considered to be an eco-evolutionary byproduct of human cultural niche construction. (shrink)

Theories of Theories of Mind brings together contributions by a distinguished international team of philosophers, psychologists, and primatologists, who between them address such questions as: what is it to understand the thoughts, feelings, and intentions of other people? How does such an understanding develop in the normal child? Why, unusually, does it fail to develop? And is any such mentalistic understanding shared by members of other species? The volume's four parts together offer a state of the art survey of (...) the major topics in the theory-theory/simulationism debate within philosophy of mind, developmental psychology, the aetiology of autism and primatology. The volume will be of great interest to researchers and students in all areas interested in the 'theory of mind' debate. (shrink)

Traditionally, species have been treated by biologists and philosophers as natural kinds. However, this conception of species has posed several problems for evolutionary theory. For example, biologists have been hard pressed to find traits had by all and only the members of a species. This has caused some philosophers to doubt that evolutionary theory is a scientific theory. ;In an effort to resolve such problems, Michael Ghiselin and David Hull have argued that species (...) are not kinds but individuals. A number of authors have adopted this conclusion. Some have even gone on to argue that besides showing that species are not kinds, the thesis that species are individuals has other ramifications for evolutionary theory. For example, the thesis is said to lend support to the Theory of Punctuated Equilibrium. ;In my dissertation, I argue that while species are not kinds, most species are not individuals either. Furthermore, even if all species were individuals, the alleged ramifications are not forthcoming. ;More specifically, in Chapter One I review the arguments against species being kinds and the recent replies to those arguments. I also examine the nature of kinds and contend that the original arguments against species being kinds still stand. ;In Chapter Two, I turn to the metaphysics of individuality. I argue that mere spatiotemporal continuity and a rough similarity among the constituents of an entity are insufficient for it to be an individual. The constituents of an individual must be appropriately causally connected as well. ;With this requirement, I return to species in Chapter Three. Most species consist of subpopulations which are not causally connected in any biological fashion. Because of this, and other reasons, I argue that most species are not individuals. ;In the final chapter, I point out that the result of the previous chapter goes against the claim that what distinguishes species from higher taxa is that species and not higher taxa are individuals. I also argue that even if all species were individuals, their individuality does not support the Theory of Punctuated Equilibrium. Finally, some authors maintain that a unit of selection must be an individual. I argue that there is no such requirement on units of selection. (shrink)

In his remarkable study Species Intelligibilis. From Perception to Knowledge, L. Spruit succinctly outlines the main points of Henry Bate’s cognitive psychology. Spruit observes that «though endorsing a Neoplatonic innatism, he does not relinquish Peripatetic views on the impact of sensory representations in the generation of intellectual cognition». Moreover, Spruit rightly notes that Bate considers the species doctrine «a pivotal philosophical issue». However, his brief account of Bate’s theory of the sensible species is far from being (...) accurate. The aim of this paper consists in presenting a more or less exhaustive interpretation of Bate’s doctrine of the sensible species. First, an attempt will be made to situate this doctrine in the context of Bate’s Speculum divinorum. Second, I shall summarize the principal views of the authors which Bate discusses in order to shed light on the doctrinal background of his theory of sensible species. Third, I shall analyze Bate’s concept of the sensible species, focusing on its ontological status and its function. Finally, I shall show that Bate’s exposition on sense-perception is profoundly influenced by Platonic theories of the soul. (shrink)

1. Introduction -- 2. Edinburgh's university and medical schools in the early nineteenth century -- 3. Natural history in Edinburgh, 1779-1832 -- 4. Geology and evolution -- 5. Edinburgh and Paris -- 6. The legacy of the 'Edinburgh Lamarckians' -- 7. Conclusion.

Ki Jeong-jin proposed a distinctive perspective in which the unified li 理 transforms into individual li by itself, and these individual li subsequently become the natures of distinct species. This viewpoint starkly contrasts with the Yulgok school’s theory, which posits that the unified principle differentiates through qi 氣. In response, Jeon Woo critiqued Ki Jeong-jin by adhering to the doctrines of the Yulgok school. According to him, a species’ nature is wholly attributed to the influence of qi. (...) Ki Jeong-jin’s disciple, Jeong Eui-rim, defended his teacher’s doctrine by embracing the organic model. He likened the relationship between Heaven and all things to that of the body and its limbs, contending that it embodies a ‘whole-part’ connection. Just as the parts coalesce to constitute the whole, the whole is omnipresent within the parts; similarly all things come together to form Heaven, and Heaven is omnipresent within all things. Based on this, Jeong Eui-rim concluded that all things ‘originally existed’ alongside Heaven, and further postulated that the li of all things originated from this ‘original existence.’ Consequently, his contention is not that the unified li differentiates into the li of all things through qi but that the li of all things inherently existed and evolved into the natures of various species. (shrink)

Pierre Trémaux’s 1865 ideas on speciation have been unjustly derided following his acceptance by Marx and rejection by Engels, and almost nobody has read his ideas in a charitable light. Here we offer an interpretation based on translating the term sol as “habitat”, in order to show that Trémaux proposed a theory of allopatric speciation before Wagner and a punctuated equilibrium theory before Gould and Eldredge, and translate the relevant discussion from the French. We believe he may have (...) influenced Darwin’s revision to the third edition of the Origin on rates of evolution, and suggest that Gould’s dismissal of Trémaux is motivated by concern that others might think punctuated equilibrium theory was tainted by a connection with Trémaux. (shrink)

The present edition provides a detailed and accessible discussion ofhis theories and adds an account of the immediate responses to the book on publication.

The notion of feedback has been exploited with considerable success in scientific and technological fields as well as in the sciences of man and society. Its use in philosophical, cultural and educational contexts, however, is still rather meagre, even if some notable attempts can be found in the literature. This paper shows that the feedback concept can help learn and understand some classical philosophical theories. In particular, attention focuses on Fichte’s doctrine of science, usually presented in obscure terms (...) following its inventor’s style, and on the vulgate version of Hegel’s dialectic. Also a classic problem of linguistics concerning the meaning of sentences in partially unknown languages is interpreted with the aid of feedback diagrams. Even if the analysis is only qualitative, it is believed that it may serve as a useful tool for thought for both students and researchers. (shrink)

One of the many problems that would have t o be solved by a satisfactory theory of empirical knowledge, perhaps the most central is a general structural problem which I shall call the epistemic regress problem: the problem of how to avoid an in- finite and presumably vicious regress of justification in ones account of the justifica- tion of empirical beliefs. Foundationalist theories of empirical knowledge, as we shall see further below, attempt t o avoid the regress by locating (...) a class of empirical beliefs whose justification does not depend on that of other empirical beliefs. Extemalist theories, the topic of the present paper, represent one species of foundationalism. (shrink)

Summary The common view has been that Darwin regarded species as artificial and arbitrary constructions of taxonomists, not as distinct natural units. However, in his transmutation notebooks he clearly subscribed to the reality of species, on the basis of the criterion of non-interbreeding. A consequence of this biological species concept was his identification of the acquisition of reproductive isolation as the mark of the completion of speciation. He developed in the notebooks a theory of geographic speciation (...) on the grounds of (a) an empirical correlation between barriers and the geographical distributions of allied species, (b) the analogy of artificial isolation in the formation of new domesticated varieties, and (c) the logical consequence of blending inheritance. A brief discussion of Darwin's species concept in later writings concludes the paper. (shrink)

In Animal Rites, Cary Wolfe examines contemporary notions of humanism and ethics by reconstructing a little known but crucial underground tradition of theorizing the animal from Wittgenstein, Cavell, and Lyotard to Lévinas, Derrida, ...

The focus of this paper is on normative ethical theories and endangered species. To be exact, I examine two theories: the theory of obligation and care ethics, and ask which is better-suited in the case of endangered species. I argue that the aretic, feminist-inspired ethics of care is well-suited in the case of companion animals, but ill-suited in the case of endangered species, especially in the case of “unlovable” species. My argument presupposes that we now (...) live an era where human disturbances to planetary ecosystems are triggering a sixth mass species extinction, and widespread interventions will be needed to save many species from extinction. (shrink)

In 1859, Charles Darwin published his best-known work On The Origin of Species. Darwin's book introduced his revolutionary theory of evolution, a work that Darwin had meticulously developed spanning two decades. Controversial at the time of publishing, Darwin's theory sparked international debate surrounding his theory of natural selection, however this historical text is arguably the most important book of its kind on biological evolution.

로저 베이컨(Roger Bacon)의 『상형증가론』은 서유럽 후기중세에서 전개된 다양한 상 형론의 원천을 이루는 작품으로 거론되어 왔다. 그는 로베르투스 그로세테스테(Robertus Grosseteste)로 대표되는 이른바 옥스퍼드학파의 자연철학에 기반한 상형론을 전개한다 는 점에서 차후 페트루스 요한네스 올리비(Petrus Johannes Olivi)에 이르는 중세 프란치 스코회 상형론 전통의 한 주축을 형성한다. 그럼에도 지난 베이컨 연구들은 대부분 근대과 학자의 원형으로서 베이컨을 조명하는 과학사적 접근에만 의존할 뿐, 철학자 베이컨의 초 상을 그리는데 인색했던 것처럼 보인다. 특히 과학사의 관점은 베이컨의 상형론을 중세광 학이라는 제한된 틀 안에서 그것의 일부로 다루었던 까닭에 베이컨의 상형론이 (...) 가지고 있 는 철학적 지반에 대한 분석에 충실하지 못한 일면적 관점만 제공했을 뿐이다. 하지만 우 리가 철학적-문헌학적으로 접근한다면 베이컨의 상형론은 아리스토텔레스철학의 재해석 에서 비롯된 질료의 능동적 가능태 이론의 산물로서 나타난다. 더욱이 베이컨의 상형론은 이처럼 독창적인 질료형상론의 토대로부터 우주와 지구 사이의 자연적 변화작용과 지각하 는 주체의 시각이론 양자 모두를 동시에 설명할 수 있는 일종의 보편수학을 구성한다. 따 라서 우리는 베이컨의 상형론의 원천적 기원과 그것이 도달하는 학문적 결과를 분석함으 로써 기존의 과학사 서술에서 벗어난 철학자 로저 베이컨의 면모들 중 하나를 드러내고자 하며, 나아가 이 분석을 기초로 베이컨의 상형론은 ‘중세광학’보다도 ‘시각학적 자연철학’ 이라 규정될 필요가 있다고 주장하려 한다. (shrink)

Action is a means of acquiring perceptual information about the environment. Turning around, for example, alters your spatial relations to surrounding objects and, hence, which of their properties you visually perceive. Moving your hand over an object’s surface enables you to feel its shape, temperature, and texture. Sniffing and walking around a room enables you to track down the source of an unpleasant smell. Active or passive movements of the body can also generate useful sources of perceptual information (Gibson 1966, (...) 1979). The pattern of optic flow in the retinal image produced by forward locomotion, for example, contains information about the direction in which you are heading, while motion parallax is a “cue” used by the visual system to estimate the relative distances of objects in your field of view. In these uncontroversial ways and others, perception is instrumentally dependent on action. According to an explanatory framework that Susan Hurley (1998) dubs the “Input-Output Picture”, the dependence of perception on action is purely instrumental: "Movement can alter sensory inputs and so result in different perceptions… changes in output are merely a means to changes in input, on which perception depends directly" (1998: 342). -/- The action-based theories of perception, reviewed in this entry, challenge the Input-Output Picture. They maintain that perception can also depend in a noninstrumental or constitutive way on action (or, more generally, on capacities for object-directed motor control). This position has taken many different forms in the history of philosophy and psychology. Most action-based theories of perception in the last 300 years, however, have looked to action in order to explain how vision, in particular, acquires either all or some of its spatial representational content. Accordingly, these are the theories on which we shall focus here. -/- We begin in Section 1 by discussing George Berkeley’s Towards a New Theory of Vision (1709), the historical locus classicus of action-based theories of perception, and one of the most influential texts on vision ever written. Berkeley argues that the basic or “proper” deliverance of vision is not an arrangement of voluminous objects in three-dimensional space, but rather a two-dimensional manifold of light and color. We then turn to a discussion of Lotze, Helmholtz, and the local sign doctrine. The “local signs” were felt cues for the mind to know what sort of spatial content to imbue visual experience with. For Lotze, these cues were “inflowing” kinaesthetic feelings that result from actually moving the eyes, while, for Helmholtz, they were “outflowing” motor commands sent to move the eyes. -/- In Section 2, we discuss sensorimotor contingency theories, which became prominent in the 20thcentury. These views maintain that an ability to predict the sensory consequences of self-initiated actions is necessary for perception. Among the motivations for this family of theories is the problem of visual direction constancy—why do objects appear to be stationary even though the locations on the retina to which they reflect light change with every eye movement?—as well as experiments on adaptation to optical rearrangement devices (ORDs) and sensory substitution. -/- Section 3 examines two other important 20th century theories. According to what we shall call the motor component theory, efference copies generated in the oculomotor system and/or proprioceptive feedback from eye-movements are used together with incoming sensory inputs to determine the spatial attributes of perceived objects. Efferent readiness theories, by contrast, look to the particular ways in which perceptual states prepare the observer to move and act in relation to the environment. The modest readiness theory, as we shall call it, claims that the way an object’s spatial attributes are represented in visual experience can be modulated by one or another form of covert action planning. The bold readiness theory argues for the stronger claim that perception just is covert readiness for action. -/- In Section 4, we move to the disposition theory, most influentially articulated by Gareth Evans (1982, 1985), but more recently defended by Rick Grush (2000, 2007). Evans’ theory is, at its core, very similar to the bold efferent readiness theory. There are some notable differences, though. Evans’ account is more finely articulated in some philosophical respects. It also does not posit a reduction of perception to behavioral dispositions, but rather posits that certain complicated relations between perceptual input and behavioral provide spatial content. Grush proposes a very specific theory that is like Evans’ in that it does not posit a reduction, but unlike Evans’ view, does not put behavioral dispositions and sensory input on an undifferentiated footing. (shrink)

If the world itself is metaphysically indeterminate in a specified respect, what follows? In this paper, we develop a theory of metaphysical indeterminacy answering this question.

Although the Neo-Darwin Theory of Evolution is one of the most celebrated theories in science, nonetheless it has received many criticisms. These criticisms are documented and a new transdisciplinary theory of origin is introduced. Darwin's original argument was that natural selection, through heritable changes, changed simple organisms over time. These heritable changes are responsible for the complex plethora of life seen around us today. Darwin's original theory, however, was deconstructed after the fact into a mutation-based theory. (...) This mutation-based theory in its current form is an insufficient and indeed unnecessary transdisciplinary explanation. A subsequent statistical comparison between the six extant scientifically based primary theories of origin was undertaken and based on current biological knowledge a statistically significantly best fit phenotypic model emerged. (shrink)

This article examines overpopulation as a basis for historical interpretation. Drawing on the ideas of T.R. Malthus, Elizabeth Kolbert, John Lovelock, Lynn Margulis, and Edward O. Wilson, I make the case that the only concept of ‘progress’ that accurately describes the human enterprise is the uncontrolled growth of population. I explain why a Malthusian/Gaia interpretation is not a historicist or eschatological narrative, like Hegelian idealism, Marxism, fundamentalist religion, or ‘end of history’ neoliberalism. My article also includes a discussion of the (...) ideas and prescriptions of contemporary commentators like physicist, Adam Frank, and the philosophers, John Gray, and Roy Scranton. What makes my article distinctive is bringing together ideas of population theory through a lens of sociobiology and post-humanist philosophy. Through this interpretive synthesis, I form a basis for recasting history as the record of the growing imbalance of our species in light of the unprecedented crises of the environment that are its byproduct. I conclude with the idea that regardless of whether the world is dying or simply going through a fundamental chaotic transformation, the role of the critical-rational historian remains the same: to tell the truth as best as she or he can know it. (shrink)

The biological species concept deals both with the meaning of the sexual species as a harmonious gene pool and with its protection against deleterious outbreeding (effected by isolating mechanisms). According to the Darwin-Muller-Mayr theory isolating mechanisms are acquired by incipient species during alloparty. Isolating mechanisms are not the result of ad hoc selection, but of a change of function of properties acquired during the preceding isolation of the incipient species. The role of behavioral properties (recognition) (...) among the isolating mechanisms has long been recognized and described by naturalists but was rejected as basis of a species definition for a number of valid reasons. (shrink)

I argue that having a theory of mind requires having at least implicit knowledge of the norms of the community, and that an implicit understanding of the normative is what drives the development of a theory of mind. This conclusion is defended by two arguments. First I argue that a theory of mind likely did not develop in order to predict behavior, because before individuals can use propositional attitudes to predict behavior, they have to be able to (...) use them in explanations of behavior. Rather, I suggest that the need to explain behavior in terms of reasons is the primary function of a theory of mind. I further argue that in order to be motivated to offer explanations of behavior, one must have at least an implicit understanding of appropriate behavior, which implies at least an implicit understanding of norms. The second argument looks at three cases of nonhuman animal societies that appear to operate within a system of norms. While there is no evidence that any species other than humans have a theory of mind, there is evidence that other species have sensitivity to the normative. Finally, I propose an explanation for the priority of norms over a theory of mind: given an understanding of norms in a society, and the ability to recognize and sanction violations, there developed a need to understand actions that violated the norms, and such explanations could only be given in terms of a person's reasons. There is a significant benefit to being able to explain behavior that violates norms, because explanations of the right sort can also serve to justify behavior. (shrink)

With A Theory of General Ethics Warwick Fox both defines the field of General Ethics and offers the first example of a truly general ethics. Specifically, he develops a single, integrated approach to ethics that encompasses the realms of interhuman ethics, the ethics of the natural environment, and the ethics of the built environment. Thus Fox offers what is in effect the first example of an ethical "Theory of Everything."Fox refers to his own approach to General Ethics as (...) the "theory of responsive cohesion." He argues that the best examples in any domain of interest--from psychology to politics, from conversations to theories--exemplify the quality of responsive cohesion, that is, they hold together by virtue of the mutual responsiveness of the elements that constitute them. Fox argues that the relational quality of responsive cohesion represents the most fundamental value there is. He then develops the theory of responsive cohesion, central features of which include the elaboration of a "theory of contexts" as well as a differentiated model of our obligations in respect of all beings. In doing this, he draws on cutting-edge work in cognitive science in order to develop a powerful distinction between beings who use language and beings that do not.Fox tests his theory against eighteen central problems in General Ethics--including challenges raised by abortion, euthanasia, personal obligations, politics, animal welfare, invasive species, ecological management, architecture, and planning--and shows that it offers sensible and defensible answers to the widest possible range of ethical problems. (shrink)

Whether any non-human animal can attribute mental states to others remains the subject of extensive debate. This despite the fact that several species have behaved as if they have a ‘theory of mind’ in various behavioral tasks. In this paper, we review the reasons of skeptics for their doubts: That existing experimental setups cannot distinguish between ‘mind readers’ and ‘behavior readers’, that results that seem to indicate ‘theory of mind’ may come from studies that are insufficiently controlled, (...) and that our own intuitive biases may lead us to interpret behavior more ‘cognitively’ than is necessary. The merits of each claim and suggested solution are weighed. The conclusion is that while it is true that existing setups cannot conclusively demonstrate ‘theory of mind’ in non-human animals, focusing on this fact is unlikely to be productive. Instead, the more interesting question is how sophisticated their social reasoning can be, whether it is about ‘unobservable inner experiences’ or not. Therefore, it is important to address concerns about the setup and interpretation of specific experiments. To alleviate the impact of intuitive biases, various strategies have been proposed in the literature. These include a deeper understanding of associative learning, a better knowledge of the limited ‘theory of mind’ humans actually use, and thinking of animal cognition in an embodied, embedded way; that is, being aware that constraints outside of the brain, and outside of the body, may naturally predispose individuals to produce behavior that looks smart without requiring complex cognition. To enable this kind of thinking, a powerful methodological tool is advocated: Computational modeling, namely agent-based modeling and, particularly, cognitive modeling. By explicitly simulating the rules and representations that underlie animal performance on specific tasks, it becomes much easier to look past one’s own biases and to see what cognitive processes might actually be occurring. (shrink)

The renowned cognitive scientist Philip Lieberman demonstrates that there is no better guide to the world's living--and still evolving--things than Darwin and that the phenomena he observed are still being explored at the frontiers of science. Lieberman relates the insights that led to groundbreaking discoveries in both Darwin's time and our own.