Behavioural evidence suggests that cephalopod molluscs may have a form of primary consciousness. First, the linkage of brain to behaviour seen in lateralization, sleep and through a developmental context is similar to that of mammals and birds. Second, cephalopods, especially octopuses, are heavily dependent on learning in response to both visual and tactile cues, and may have domain generality and form simple concepts. Third, these animals are aware of their position, both within themselves and in larger space, including having (...) a working memory of foraging areas in the recent past. Thus if using a ‘global workspace’ which evaluates memory input and focuses attention is the criterion, cephalopods appear to have primary consciousness. (shrink)

Cephalopods are extraordinary molluscs equipped with vertebrate‐like intelligence and a unique buoyancy system for locomotion. A growing body of evidence from the fossil record, embryology and Bayesian molecular divergence estimations provides a comprehensive picture of their origins and evolution. Cephalopods evolved during the Cambrian (∼530 Ma) from a monoplacophoran‐like mollusc in which the conical, external shell was modified into a chambered buoyancy apparatus. During the mid‐Palaeozoic (∼416 Ma) cephalopods diverged into nautiloids and the presently dominant coleoids. Coleoids (...) (i.e. squids, cuttlefish and octopods) internalised their shells and, in the late Palaeozoic (∼276 Ma), diverged into Vampyropoda and the Decabrachia. This shell internalisation appears to be a unique evolutionary event. In contrast, the loss of a mineralised shell has occurred several times in distinct coleoid lineages. The general tendency of shell reduction reflects a trend towards active modes of life and much more complex behaviour. (shrink)

What is the distribution of cognitive ability within the animal kingdom? It would be egalitarian to assume that variation in intelligence is everywhere clinal, but examining trends among major phylogenetic groups, it becomes easy to distinguish high-performing ‘generalists’ – whose behavior exhibits domain-flexibility – from ‘specialists’ whose range of behavior is limited and ecologically specific. These generalists include mammals, birds, and, intriguingly, cephalopods. The apparent intelligence of coleoid cephalopods (squids, octopuses, and cuttlefish) is surprising – and philosophically relevant (...) – because of our independent evolutionary lineages: the most recent common ancestor between vertebrates and cephalopods would have been a small wormlike organism, without any major organizational structure to its nervous system. By identifying the cognitive similarities between these organisms and vertebrates, we can begin to derive some general principles of intelligence as a biological phenomenon. Here, I discuss trends in cephalopod behavior and surrounding theory, and suggest their significance for our understanding of domain-general cognition and its evolution. (shrink)

Sentience is the capacity to have feelings, such as feelings of pain, pleasure, hunger, thirst, warmth, joy, comfort and excitement. It is not simply the capacity to feel pain, but feelings of pain, distress or harm, broadly understood, have a special significance for animal welfare law. Drawing on over 300 scientific studies, we evaluate the evidence of sentience in two groups of invertebrate animals: the cephalopod molluscs or, for short, cephalopods (including octopods, squid and cuttlefish) and the decapod crustaceans (...) or, for short, decapods (including crabs, lobsters and crayfish). We also evaluate the potential welfare implications of current commercial practices involving these animals. (shrink)

How genomic innovation translates into organismal organization remains largely unanswered. Possessing the largest invertebrate nervous system, in conjunction with many species‐specific organs, coleoid cephalopods (octopuses, squids, cuttlefishes) provide exciting model systems to investigate how organismal novelties evolve. However, dissecting these processes requires novel approaches that enable deeper interrogation of genome evolution. Here, the existence of specific sets of genomic co‐evolutionary signatures between expanded gene families, genome reorganization, and novel genes is posited. It is reasoned that their co‐evolution has contributed (...) to the complex organization of cephalopod nervous systems and the emergence of ecologically unique organs. In the course of reviewing this field, how the first cephalopod genomic studies have begun to shed light on the molecular underpinnings of morphological novelty is illustrated and their impact on directing future research is described. It is argued that the application and evolutionary profiling of evolutionary signatures from these studies will help identify and dissect the organismal principles of cephalopod innovations. By providing specific examples, the implications of this approach both within and beyond cephalopod biology are discussed. (shrink)

Kammerer and Frankish (this issue) suggest we evaluate introspection of mental states to examine consciousness, but in cephalopods we can only judge internal actions by behaviour output. We can look for mental states — perceptions, beliefs, and intentions — where the tight input–action linkage that is true for reflexes, instincts, and well-learned actions is discontinuous. Here the animal is internally evaluating the sensory input from previous information and making a decision before acting. Perceptions: the octopus motion parallax head bob (...) and wound tending. Beliefs: the cuttlefish delay of gratification. Intentions: use of previous information for future strategies in octopus win-switch foraging and carrying a coconut for future shelter. Intentions are also used in skin displays, their widespread directional lateralization, the octopus 'passing cloud' to startle an immobile prey, the cuttlefish eyespot dot production to repel only visual predators, and the cuttlefish males' deceptive use of the female skin display. These examples allow us to assume in what situations introspection might be used but tell us little about the process of these actions. However, the quantitative variation, laterality, and combination of different displays suggest that cephalopod sexual skin displays are a special case of linkage of internal evaluation to external output that needs further behavioural and neurophysiological assessment. (shrink)

The vertebrate retina is said to be inverted because the photoreceptors are oriented in the posterior direction and are thus unable to maximize photodetection under conditions of low illumination. The tapetum lucidum is a photoreflective structure located posterior to the photoreceptors in the eyes of some fish and terrestrial animals. The tapetum reflects light forward, giving incident photons a “second chance” to collide with a photoreceptor, substantially enhancing retinal photosensitivity in dim light. Across vertebrates (and arthropods), there are a wide (...) variety of tapeta that vary in structure, chemical composition, and even tissue architecture, indicating repeated convergent evolution. To date, the tapetum has not been observed in any cephalopod, however, which also possess a camera‐like eye, but with the retinal photoreceptors oriented in the anterior direction. We therefore hypothesize that the tapetum lucidum is a compensatory adaptation for the suboptimal design of the inverted retina of vertebrates. (shrink)

Graphical AbstractCephalopods provide a unique model system to investigate how organismal novelties evolve. In article number 1900073, Elena A. Ritschard et al. discuss how co-evolutionary signatures among various genomic characters have contributed to cephalopod organismal novelties and can be used to dissect their functional organization. Cover illustration by Hannah Schmidbaur.

Birch’s criterion for the precautionary principle imposes a high evidential standard that many cases will fail to meet. Reliable, relevant anecdotal evidence suggestive of animal sentience should also fall within the scope of the precautionary principle. This would minimize potential suffering (as happened in the case of cephalopods) while further evidence is gathered.

All animals have evolved solutions to manage their genomes, enabling the efficient organization of meters of DNA strands in the nucleus and allowing for nuanced regulation of gene expression while keeping transposable elements suppressed. Epigenetic modifications are central to accomplishing all these. Recent advances in sequencing technologies and the development of techniques that profile epigenetic marks and chromatin accessibility using reagents that can be used in any species has catapulted epigenomic studies in diverse animal species, shedding light on the multitude (...) of epigenomic mechanisms utilized across the evolutionary tree. Now, comparative epigenomics is a rapidly growing field that is uncovering mechanistic aspects of epigenetic modifications and chromatin organization in non‐model invertebrates, ranging from octopus to sponges. This review puts recent discoveries in the epigenetics of non‐model invertebrates in historical context, and describes new insight into the patterning and functions of DNA methylation and other highly conserved epigenetic modifications. (shrink)

One of the primary concerns in animal research is ensuring the welfare of laboratory animals. Modern views on animal welfare emphasize the role of animal sentience, i.e. the capacity to experience subjective states such as pleasure or suffering, as a central component of welfare. The increasing official recognition of animal sentience has had large effects on laboratory animal research. The Cambridge Declaration on Consciousness (Low et al., University of Cambridge, 2012) marked an official scientific recognition of the presence of sentience (...) in mammals, birds, and cephalopods. Animal sentience has furthermore been recognized in legislation in the European Union, UK, New Zealand and parts of Australia, with discussions underway in other parts of the world to follow suit. In this paper, we analyze this shift towards recognition of sentience in the regulation and practice in the treatment of laboratory animals and its effects on animal welfare and use. (shrink)

How consciousness appeared much earlier in evolutionary history than is commonly assumed, and why all vertebrates and perhaps even some invertebrates are conscious. How is consciousness created? When did it first appear on Earth, and how did it evolve? What constitutes consciousness, and which animals can be said to be sentient? In this book, Todd Feinberg and Jon Mallatt draw on recent scientific findings to answer these questions—and to tackle the most fundamental question about the nature of consciousness: how does (...) the material brain create subjective experience? After assembling a list of the biological and neurobiological features that seem responsible for consciousness, and considering the fossil record of evolution, Feinberg and Mallatt argue that consciousness appeared much earlier in evolutionary history than is commonly assumed. About 520 to 560 million years ago, they explain, the great “Cambrian explosion” of animal diversity produced the first complex brains, which were accompanied by the first appearance of consciousness; simple reflexive behaviors evolved into a unified inner world of subjective experiences. From this they deduce that all vertebrates are and have always been conscious—not just humans and other mammals, but also every fish, reptile, amphibian, and bird. Considering invertebrates, they find that arthropods (including insects and probably crustaceans) and cephalopods (including the octopus) meet many of the criteria for consciousness. The obvious and conventional wisdom–shattering implication is that consciousness evolved simultaneously but independently in the first vertebrates and possibly arthropods more than half a billion years ago. Combining evolutionary, neurobiological, and philosophical approaches allows Feinberg and Mallatt to offer an original solution to the “hard problem” of consciousness. (shrink)

Invertebrate animals are frequently lumped into a single category and denied welfare protections despite their considerable cognitive, behavioral, and evolutionary diversity. Some ethical and policy inroads have been made for cephalopod molluscs and crustaceans, but the vast majority of arthropods, including the insects, remain excluded from moral consideration. We argue that this exclusion is unwarranted given the existing evidence. Anachronistic readings of evolution, which view invertebrates as lower in the scala naturae, continue to influence public policy and common morality. The (...) assumption that small brains are unlikely to support cognition or sentience likewise persists, despite growing evidence that arthropods have converged on cognitive functions comparable to those found in vertebrates. The exclusion of invertebrates is also motivated by cognitive-affective biases that covertly influence moral judgment, as well as a flawed balancing of scientific uncertainty against moral risk. All these factors shape moral attitudes toward basal vertebrates too, but they are particularly acute in the arthropod context. Moral consistency dictates that the same standards of evidence and risk management that justify policy protections for vertebrates also support extending moral consideration to certain invertebrates. Moving beyond a vertebrate-centered conception of welfare can also clarify foundational moral concepts in their own right. (shrink)

While life in general can be explained by the mechanisms of physics, chemistry and biology, to many scientists and philosophers it appears that when it comes to explaining consciousness, there is what the philosopher Joseph Levine called an “explanatory gap” between the physical brain and subjective experiences. Here we deduce the living and neural features behind primary consciousness within a naturalistic biological framework, identify which animal taxa have these features (the vertebrates, arthropods, and cephalopod molluscs), then reconstruct when consciousness first (...) evolved and consider its adaptive value. We theorize that consciousness is based on all the complex system features of life, plus the even more complex features of elaborate brains. We argue that the main reason why the explanatory gap between the brain and experience has been so refractory to scientific explanation is that it arises from both life and from varied and diverse brains and brain regions, so bridging the gap requires a complex, multifactorial account that includes the great diversity of consciousness, its personal nature that stems from embodied life, and the special neural features that make consciousness unique in nature. (shrink)

Most early studies of consciousness have focused on human subjects. This is understandable, given that humans are capable of reporting accurately the events they experience through language or by way of other kinds of voluntary response. As researchers turn their attention to other animals, “accurate report” methodologies become increasingly difficult to apply. Alternative strategies for amassing evidence for consciousness in non-human species include searching for evolutionary homologies in anatomical substrates and measurement of physiological correlates of conscious states. In addition, creative (...) means must be developed for eliciting behaviors consistent with consciousness. In this paper, we explore whether necessary conditions for consciousness can be established for species as disparate as birds and cephalopods. We conclude that a strong case can be made for avian species and that the case for cephalopods remains open. Nonetheless, a consistent effort should yield new means for interpreting animal behavior. (shrink)

How does consciousness vary across the animal kingdom? Are some animals ‘more conscious’ than others? This article presents a multidimensional framework for understanding interspecies variation in states of consciousness. The framework distinguishes five key dimensions of variation: perceptual richness, evaluative richness, integration at a time, integration across time, and self-consciousness. For each dimension, existing experiments that bear on it are reviewed and future experiments are suggested. By assessing a given species against each dimension, we can construct a consciousness profile for (...) that species. On this framework, there is no single scale along which species can be ranked as more or less conscious. Rather, each species has its own distinctive consciousness profile. (shrink)

Why do octopuses matter to philosophy? They matter to the part of philosophy concerned with the mind. To see why, we step back and think about the evolutionary connections between all living things. Biologists think of these relationships in terms of a tree of life. This is a huge tree-like pattern, marking which species are close relatives and which are distantly connected. The vertebrates form one branch of the tree, and that is where we find nearly all the animals with (...) large and complex brains. These include ourselves, other mammals, and birds. In evolutionary terms, these are all cousins. In the huge area of the tree containing other animals, invertebrates, there is only one small branch where we also find large brains. This branch contains the cephalopods – octopuses, cuttlefish, and squid. Large nervous systems evolved separately on these two branches, and nowhere else. Octopuses are a separate experiment in the evolution of the mind. Meeting an octopus is like meeting an intelligent alien. So what did this experiment produce? Here is one thing. The nervous system of an octopus is less centralized than ours. In fact, more than half of the octopus' neurons are not in the animal's central "brain" at all, but in the eight arms. It is as if each arm has a mind of its own. Or perhaps in an octopus we see intelligence without a unified self. (shrink)

This paper addresses the question of whether animals have souls and the ability to experience God after death within the limitations of their nature. Plausible explanations for the natural origin of life and for the development of subsequent complexity are increasingly being advanced by molecular biologists. Christian tradition and scholasticism teach that the human body is animated by the soul which is the agent of vital activities. This teaching is incompatible with the claim for a natural origin for life. At (...) some stage in the evolution of chordates and cephalopods a sense of self-awareness and an ability to distinguish between pleasure and the absence of pleasure would have arisen permitting the potential for ensoulment. The premise that evolution was gradual but ensoulment was discontinuous predicates the irrational conclusion that for one generation the parents were animals without souls and their children humans, made in the image of God, and with souls. Biological gradualism is incompatible with a sudden ensoulment dichotomy both in the evolutionary history of humans and for a maturing foetus, human or animal. Gradualism must apply to both body and soul. A Christian interpretation of physicalism, however, provides an alternative to dualism and resolves the paradoxes and difficulties relating to animals. (shrink)

This book is devoted to the welfare of invertebrates, which make up 99% of animal species on earth. Addressing animal welfare, we do not often think of invertebrates; in fact we seldom consider them to be deserving of welfare evaluation. And yet we should. Welfare is a broad concern for any animal that we house, control or utilize – and we utilize invertebrates a lot. The Authors start with an emphasis on the values of non-vertebrate animals and discuss the need (...) for a book on the present topic. The following chapters focus on specific taxa, tackling questions that are most appropriate to each one. What is pain in crustaceans, and how might we prevent it? How do we ensure that octopuses are not bored? What do bees need to thrive, pollinate our plants and give us honey? Since invertebrates have distinct personalities and some social animals have group personalities, how do we consider this? And, as in the European Union’s application of welfare consideration to cephalopods, how do the practical regulatory issues play out? We have previously relegated invertebrates to the category ‘things’ and did not worry about their treatment. New research suggest that some invertebrates such as cephalopods and crustaceans can have pain and suffering, might also have consciousness and awareness. Also, good welfare is going to mean different things to spiders, bees, corals, etc. This book is taking animal welfare in a very different direction. Academics and students of animal welfare science, those who keep invertebrates for scientific research or in service to the goals of humans, as well as philosophers will find this work thought-provoking, instructive and informative. (shrink)

This issue provides an end of year feast with something for everyone. Browning and Veit note how, since the presence of sentience in mammals, birds and cephalopods received official scientific reco...

We attempt to bring the concepts of pain, suffering, and anxiety into sufficient focus to make them serviceable for empirical investigation. The common-sense view that many animals experience these phenomena is supported by empirical and philosophical arguments. We conclude, first, that pain, suffering, and anxiety are different conceptually and as phenomena, and should not be conflated. Second, suffering can be the result — or perhaps take the form — of a variety of states including pain, anxiety, fear, and boredom. Third, (...) pain and nociception are not equivalent and should be carefully distinguished. Fourth, nociception can explain the behavior of insects and perhaps other invertebrates (except possibly the cephalopods). Fifth, a behavioral inhibition system associated with anxiety in humans seems to be present in mammals and most or all other vertebrates. Based on neurochemical and behavioral evidence, it seems parsimonious to claim that these animals are capable of experiencing anxious states. (shrink)

In this essay I explore the resources Thomas Aquinas provides for enquiries concerning the psychological abilities of nonhuman animals. I first look to Aquinas’s account of divine, angelic, human, and nonhuman animal naming, to help us articulate the contours of a ‘critical anthropocentrism’ that aims to steer clear of the mistakes of a na¨ıve anthropocentrism and misconceived avowals to entirely eschew anthropocentrism. I then address the need for our critical anthropocentrism both to reject the mental-physical dichotomy endorsed by ‘folk psychology’ (...) and to articulate a more adequate ‘commonsense psychology’ that acknowledges most embodied animal behavior is observable psychological behavior. Next, I argue that we can develop Aquinas’s doctrine of estimation and conation to formulate an account of nonhuman animal action that more adequately characterizes the purposeful behaviors of nonhuman animals. To do so, we first need to recognize a wider range of nonhuman animal behaviors that are captured by Aquinas’s ‘estimative sense’, and that all of these behaviors are specified by a finite variety of particular goods confined to the animals’ environmental niches. But we also need to supplement Aquinas’s account of human and nonhuman animal agency by exploring the ontogeny and ecology of how humans and other animals become attuned to affordances within these different environmental niches. I argue that we should look to Aquinas’s account of nonhuman animal capacities in ST I-II 6-17 for subtle insights that can expand our understanding of how nonhuman animals engage in purposeful behavior by exercising analogous nonrational and imperfectly voluntary forms of intention, deliberation, choice, execution, and enjoyment. I conclude with an outline for how future enquiry can seek to explain the nonrational purposeful problem-solving competencies of chimps, canines, corvids, cetaceans, cephalopods, and other nonhuman animal species. (shrink)

The multiple realizability thesis (MRT) is an important philosophical and psychological concept. It says any mental state can be constructed by multiple realizability (MR), meaning in many distinct ways from different physical parts. The goal of our study is to find if the MRT applies to the mental state of consciousness among animals. Many things have been written about MRT but the ones most applicable to animal consciousness are by Shapiro in a 2004 book called The Mind Incarnate and by (...) Polger and Shapiro in their 2016 work, The Multiple Realization Book. Standard, classical MRT has been around since 1967 and it says that a mental state can havevery manydifferent physical realizations, in a nearly unlimited manner. To the contrary, Shapiro’s book reasoned that physical, physiological, and historical constraints force mental traits to evolve in just a few, limited directions, which is seen as convergent evolution of the associated neural traits in different animal lineages. This is his mental constraint thesis (MCT). We examined the evolution of consciousness in animals and found that it arose independently in just three animal clades—vertebrates, arthropods, and cephalopod mollusks—all of which share many consciousness-associated traits: elaborate sensory organs and brains, high capacity for memory, directed mobility, etc. These three constrained, convergently evolved routes to consciousness fit Shapiro’s original MCT. More recently, Polger and Shapiro’s book presented much the same thesis but changed its name from MCT to a “modest identity thesis.” Furthermore, they argued against almost all the classically offered instances of MR in animal evolution, especially against the evidence of neural plasticity and the differently expanded cerebrums of mammals and birds. In contrast, we argue that some of these classical examples of MR are indeed valid and that Shapiro’s original MCT correction of MRT is the better account of the evolution of consciousness in animal clades. And we still agree that constraints and convergence refute the standard, nearly unconstrained, MRT. (shrink)

The Evolution of the Sensitive Soul is a landmark attempt to make progress on the problem of animal consciousness. Ginsburg and Jablonka propose a general cognitive marker of the presence of consciousness: Unlimited Associative Learning. They use this marker to defend a generous view about the distribution of consciousness in the natural world, on which a capacity for conscious experience is common to all vertebrates, many arthropods and some cephalopod molluscs. They use this inferred distribution to defend a view about (...) the evolution of consciousness, on which it has evolved at least three times, first evolved at around the time of the Cambrian explosion, and was in fact the driving force behind that explosion. In this essay review, I reflect critically on the book’s central idea: the proposal that Unlimited Associative Learning provides a general marker of consciousness. (shrink)

IntroductionThe observation that animals may respond to emotional states of conspecific or even hetero-specific individuals is not new. Darwin broached the question by underlying the ability of animals to express sympathy, i.e. the response to non-self-emotional status, and this across species barriers. More importantly, he tried to find the evolutionary origin of this animal trait, suggesting that it evolved from the selective advantages of kinship behaviour in the struggle for life (Darwin, 1872). Such a behaviour corresponds, for instance, to alloparental (...) care relatively common in mammals and birds, and now also characterized in fishes and insects (Josi, Taborsky, & Frommen, 2019; Wu, Walser, Sun, & Kölliker, 2020). After more than one century, the need of defining what exactly non-human animals are able to feel, and from this starting point, rethink the legal status and place of animals in human societies, suddenly arises. This can mainly be considered as an indirect consequence of people awareness of human-driven dramatic impacts on global climate, biodiversity, but also on a more daily basis on animal life and welfare. However, because assessable currencies are required to establish laws, animals were classified into categories based on ecological (e.g. invasive species, pest, wild, domestic), biological (e.g. vertebrates and invertebrates) or cognitive (e.g. primates, cephalopods) traits. This should help lawyers to define ethical rules of animal use by humans and t... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Painting in Tongues:Faith-Based Languages of Formalist ArtKevin Z. Moore (bio)A philosophical problem is created by the incoherence between the earlier state and the later one.—Ian Hacking, Historical OntologyWhatever is happening to evidence-based treatment? When the facts contravene conventional wisdom, go with the anecdotes?—New York Times, "Science Times," February 14, 2006Cephalopods have a visual language that may be considered artful; humans have written and vocalized languages that are sometimes artful; (...) but it is doubtful that there is such a thing as a "language of art," particularly in the sense that twentieth-century formalists and their critics carelessly speak of one or many. Cephalopods flash color-forms on their hides to communicate intents and emotions, maybe even to project plans. They speak in tattooed tongues through neurologically embossed patterns and color field designs displayed on the skin. The large-eyed sea creatures communicate voicelessly in a visual language of pure color-forms, each species perhaps having its own dialect. Though not a full or official language by any means, their color-forms display the ideal that twentieth-century formalist artists sought to graphically realize (referential and conceptual immediacy, emotional coloring, communication via pure, that is, nonpictorial, form). Formalist inspired artists and their critic-expositors describe abstract pattern-painting as though it were a visual language equal to that of the cephalopod. Yet [End Page 40] although we can reasonably imagine cephalopods getting the correct message by observation, we cannot reasonably imagine observers getting any message at all, let alone the intended message, from abstractionist painting. This casts suspicion on the formalists' claims about visual language. Observers cannot and famously do not get anything "out" of formalist pattern paintings, though they do project quite a lot "into" them. The telling difference between octopus and artist? Cephalopods communicate visually—their survival depends on it. Formalists do not, though the survival and flourishing of their art depends upon the belief that they do.Notably, explanations of what exactly a formalist language of art is goes missing from accounts of sense and reference in the relevant literature, where we learn that this or that painting exhibits this or that language of art but never how this or that painting functions as a language of any sort. The "language of art" phrase, it seems, has the same force as mentioning truth or existence: it explains nothing. Talk of a language of art suggests merely that a painting exhibits a communicative intent; it does not explain how that intent is linguistically mediated. The phrase is ostensive and nominal, not descriptive and expository.Prior to the twentieth century there may have been some justification for this language since art was shaped by objective reference, identifiable codes (sign and symbol systems), and recognizable scenes (compositions) that made painting a language-like public media. Observers could see immediately or "read" paintings by observation as though they were reading a language. Images were shaped by observation; reference was fixed by convention. The formalist revolution in the late nineteenth and early twentieth centuries dismantled the public character of representation in painting. After the revolution, the new art that appeared was a sort of visual humpty-dumptyism, to invoke a language metaphor. Formalist imagery functioned the way words did for Mr. Carroll's Mr. Dumpty: they meant what the artist intended them to mean and not what observation or convention constrained them to mean. Reference and meaning were as arbitrary as the visual forms chosen to bear them. Once a communicative medium, painting became an expressive medium, the values of the latter superseding those of the former wholly or in part. Even when a formalist painting alluded to a conventional arrangement (a landscape or portrait, for example), the composition was as visually parodic of genre as Mr. Carroll's Jabberwocky was verbally parodic of narrative poetry, preserving syntax (form) but not the integrity of the formal agents of communication. Both are forms of nonsense, yet only one intentionally so.Styles of formalism do not facilitate the observation of intended reference; they are not effective forms of communication because they are not languages. If the basic function of a visual art is to communicate a specific... (shrink)

In her essay “The Idea of Perfection,” Iris Murdoch argues that sustained attention directed towards another can result in a person’s moral improvement by getting them to have a more accurate view of the other. In this essay, I argue that the award-winning film My Octopus Teacher illustrates Murdoch’s view and corrects some of its shortcomings. It illustrates Murdoch’s claim by showing how one of the filmmaker’s sustained attention directed at an octopus results not only in an alternation in the (...) filmmaker’s view of the cephalopod but also transforms his life by making him more open to others. Because the central relationship in the film is one between a human being and a cephalopod, the film also corrects the anthropocentric bias in Murdoch’s account by showing that a human being can have a transformative relationship with a creature as alien appearing as an octopus. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Metazoa: Animal Life and the Birth of the Mind by Peter Godfrey-SmithMichael BrownMetazoa: Animal Life and the Birth of the Mind BY PETER GODFREY-SMITH New York: Farrar, Straus and Giroux, 2020Carrying forward the project he began in Other Minds (2016), Peter Godfrey-Smith aims in Metazoa (2020) to cast light on the problem of consciousness by inviting meditation on the minds of our distant deep-sea cousins. To elaborate on (...) the Nagelian question of what it’s like to be a bat, he asks what it is like to be a crab, a shrimp, or a cephalopod. One will not find here the dense and fine-grain argumentation that is characteristic of academic monographs, but instead a freer exploration of ideas ranging from marine biology, to philosophy of mind, to animal psychology. Godfrey-Smith’s more modest goal is not to argue definitively for a single viewpoint, but to acclimate the reader to the challenging conceptual-shift he calls gradualism—namely, “the idea that in evolution, minds and experience come slowly into view, rather than appearing in a single move” (262).In the place of a barrage of observational data or dense philosophical argumentation, Godfrey-Smith paints a rich picture of the underwater environment, describes his personal interactions with the creatures that live there, and invites the reader to reflect on their activities and the cognition behind them. In this capacity, he walks a fine line—not anthropomorphizing the creatures, but presenting their actions as mentally agnostic as possible—to let the reader consider how much mental unity there might be, or how much self-or other-awareness may or may [End Page 130] not be present behind the beady mollusk eyes. Nevertheless, he strives to acquaint us with creatures we otherwise might not engage with. The several drawings of the animals and settings Godfrey-Smith discusses throughout the book aid this goal, as well as eight pages of vibrant photographs featuring several of the book’s “characters.”Because minds are things formed over time, Godfrey-Smith takes us through the first fossil evidence of animals in the Ediacaran, the appearance of shrimp-like ancestors in the Cambrian, the vast increase in size of the Ordovician, and the appearance of the octopus and dinosaurs of the Mesozoic. Yet, minds also develop under pressure and conditions of their environment, so Godfrey-Smith takes us on his dives to consider what environmental conditions led to the development of these submarine minds. As such, the text inventively winds its way across dimensions of space, time, and a variety of academic disciplines.In advancing the gradualist thesis, Godfrey-Smith entertains the Aristotelian notion of continuity between life and mind, as opposed to Descartes’ firm dualism. In this way, as noted in chapter 2, when a cell establishes its boundaries and controls the traffic of ions in and out, it becomes a kind of self. This leads him to a discussion of the glass sponge, multicellular but structurally simple, and yet a “collector and curator of biological light,” referring to its ability to channel light like a fiber optic cable (47). Chapter 3 considers the cnidarians—corals, in particular—in which the first signs of animal action appear. This action, like grasping, requires the appearance of a nervous system, and this increased complexity seems to give rise to agency, and more particularly, subjecthood. Chapter 4 invites us to consider the crab to guide reflections on early animal sensation. Of particular interest to this investigation are signs of feeling pain, such as the release of painkillers and the tending of wounds. Surprisingly, scientists find such behavior in shrimp. Chapter 5 returns to more philosophical considerations, attempting to stitch up false dichotomies of self-awareness and other-awareness, and activity and passivity, to name a couple. This sets the stage for chapter 6’s examination of the mysterious mix of mental unity and disunity in the octopus. With a decentralized nervous system, each arm seems to have a mind of its own, yet the creature nevertheless acts to unified purposes. Godfrey-Smith considers the resemblance to split-brain cases in humans, and the copresence of unified and disunified experience in... (shrink)

Resumen: Este texto es un estudio sobre el consumo de invertebrados marinos y de agua dulce en el sudoeste de Francia desde los principios del siglo XVI hasta el día de hoy. Toma en cuenta alrededor de 100 especies: bivalvos, incluso mejillones de agua dulce; gasterópodas; cefalópodas; crustáceas, incluso cangrejos de río; erizos y anémonas de mar. El artículo propone una historia tan detallada como sea posible de cada especie o grupo de especies cercanas; evoca las evoluciones de sus representaciones (...) sociales, de sus valorizaciones comerciales, de sus preparaciones culinarias, etc. Con su importante litoral sobre el Golfo de Vizcaya y sus ciudades ubicadas tierra adentro, el sudoeste de Francia constituye un área de estudio interesante para pensar la complejidad de los hábitos de consumo de mariscos durante el periodo anterior al desarrollo de los transportes rápidos y a la invención del frio artificial.: This text is a study on the consumption of marine and freshwater invertebrates in Southwest France from the early 16thcentury to the present day. Around 100 species are taken into account: bivalves including river mussels; gastropods; cephalopods; crustaceans including crayfishes; urchins and sea anemones. The article proposes a history as detailed as possible of each species or group of closely related species, including the evolution of their social representations, commercial valuations, culinary preparations, etc. With its important coastline on the Gulf of Gascony and its inland cities, Southwest France forms an interesting study area to think about the complexity of seafood consumption patterns in the era before the development of rapid transports and the invention of artificial refrigeration. (shrink)