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The ‘Thing’ From This World, Sergio M. Pellis Jan 2019

The ‘Thing’ From This World, Sergio M. Pellis

Animal Sentience

Science progresses by making contrasts, and the living world is a gold mine of contrasts. Often disciplines become victims by focusing on too narrow a slice of that diversity, leading to a myopic view of how nature works. The relationships between the brain and behavior have been intensively studied in vertebrates, especially mammals, and we have become complacent in our assumptions about how behavior is constructed. As the target article by Mather (2019) shows, the relationship between the brain and behavior in octopuses forces us to reevaluate some of those assumptions.


Are Our Ideas About Octopus Life Too Anthropomorphic To Help?, Kenneth J. Aitken Jan 2019

Are Our Ideas About Octopus Life Too Anthropomorphic To Help?, Kenneth J. Aitken

Animal Sentience

Our understanding of the evolution and ontogeny of the octopus and its behavioral repertoire in its natural habitat remains rudimentary at best. There are many parallels, but also just as many differences from our models of human biology and ontogeny, making anthropocentric generalizations of limited use in explanation.


A Behavior-Analytic Approach To Understanding Octopus “Mind”, Lindsay R. Mehrkam Jan 2019

A Behavior-Analytic Approach To Understanding Octopus “Mind”, Lindsay R. Mehrkam

Animal Sentience

Mather makes a convincing case for octopus sentience based on a lot of evidence of their complex learning capabilities. It should follow from Mather’s findings that these intelligent invertebrates are worthy of welfare considerations, just as vertebrate species with similar capabilities are. I provide a complementary environment-behavior analysis of how we might understand the world of the octopus more straightforwardly, borrowing from Mather’s examples, to show how to promote opportunities for complex learning and species-typical behaviors in the octopus.


Octopus Experience, Peter Godfrey-Smith Jan 2019

Octopus Experience, Peter Godfrey-Smith

Animal Sentience

The first part of this commentary attempts to get "inside" the octopus mind a little further than Mather does, drawing on her description of octopus cognition in many places but diverging in others. The second part outlines other disagreements with her account of the animals, especially in the area of social behavior.


Octopus Intelligence: The Importance Of Being Agnostic, Piero Amodio Jan 2019

Octopus Intelligence: The Importance Of Being Agnostic, Piero Amodio

Animal Sentience

Mather’s (2019) provocative claim that octopuses have a mind hinges on the inference that their striking behavioural flexibility is evidence of “complex” cognitive abilities. I discuss alternative explanations — not to deny the possibility of complexity but to point out that current evidence does not allow us to draw firm conclusions. Only an agnostic approach will lead to the systematic investigation of octopus behaviour and ultimately, greater insights into the cognitive capacities of these fascinating creatures.


Keeping Hold Of Nurse, Andrew Packard Jan 2019

Keeping Hold Of Nurse, Andrew Packard

Animal Sentience

Mather draws from a lifetime devoted to studying individual octopuses in the wild and in aquaria to combine a natural history account of their actions with an argument from design adopted from second-, often third-hand sources. The 'distributed' [decentralised] nervous system said to contrast with that of vertebrates – a premise largely accepted by Mather’s commentators so far – does not reflect the original literature on motor control, nor the facts of comparative anatomy, functional morphology and morphogenesis. Ontogeny is absent. With the help of some old or little-known illustrations from my own participant-observer experimental investigations, I will try here …


Octopus: Multiple Minds Or Just A Slow Thinker?, Shelley A. Adamo Jan 2019

Octopus: Multiple Minds Or Just A Slow Thinker?, Shelley A. Adamo

Animal Sentience

An octopus has more neurons in their peripheral nervous system (PNS) than in their brain. PNS neurons could participate in forming cognitive networks with the central brain in the same way that the cerebellum is now thought to contribute to mammalian cognition. However, cephalopods lack myelinated fibres, which might decrease the ability of the PNS to participate in cognitive networks. The lack of myelinated fibres may also select for a less integrated brain, with an increased emphasis on local information processing. Alternatively, integration may still occur across distant neural centers, but proceed more slowly in cephalopods than in mammals.


Octopus Sentience: Three Criteria, Alix Noël-Guéry Jan 2019

Octopus Sentience: Three Criteria, Alix Noël-Guéry

Animal Sentience

The first question to ask is whether octopuses are sentient, so that, if so, they can be protected. Three consensual criteria to evaluate animal sentience can be applied to the octopus. Octopuses meet all three of them.


What And Where Is An Octopus’S Mind?, Jennifer A. Mather Jan 2019

What And Where Is An Octopus’S Mind?, Jennifer A. Mather

Animal Sentience

It is gratifying to see the thorough discussion of whether octopuses have a mind, though perhaps a mind that is different from those of “higher” vertebrates. It stimulates us to look at the welfare of these animals and challenges us to find better ways to test mindfulness and cognition across animals with widely differing natural histories and sensory and motor capacities.


Aesthetics And Imagining The Octopus’S Mind, André Krebber, Maike Riedinger, Yvette Watt Jan 2019

Aesthetics And Imagining The Octopus’S Mind, André Krebber, Maike Riedinger, Yvette Watt

Animal Sentience

Several commentators on Mather’s target article discuss the challenges of finding adequate cognitive methods and concepts for accessing the mind and experience of octopuses. Building on Godfrey-Smith’s commentary, we propose aesthetics as a way. The arts provide means to perform what Godfrey-Smith calls an “imaginative leap” to access the experience of octopuses, especially mimesis. We are trying to do this in our current project Okto-Lab. Laboratory for Octopus Aesthetics.


Justice For Nature, Haydn Washington Jan 2019

Justice For Nature, Haydn Washington

Animal Sentience

Eight points are made in this commentary: (1) Ecocentrism is the preferable term. (2) Indigenous societies have long used a kinship ethics. (3) Earth jurisprudence and ecodemocracy should be considered. (4) Assumptions can be better defined. (5) Ethical pluralism is open to question. (6) The ethics of individuals vs. ecosystems needs further discussion. (7) Including justice for nature within social justice may be a serious mistake. (8) Trustees need to be ethically sophisticated.


Just Policy Paralysis?, Clare Palmer, Bob Fischer Jan 2019

Just Policy Paralysis?, Clare Palmer, Bob Fischer

Animal Sentience

Treves et al. (2019) argue that policy making should include the interests and well-being of present and future generations of humans and nonhumans. There are deep and abiding conflicts of interest both between and within these groups. Trying to factor in so many considerations is likely to generate political gridlock. The authors need to explain how to avoid this.


Futurity, Selves And Further Organisms, Robin Attfield Jan 2019

Futurity, Selves And Further Organisms, Robin Attfield

Animal Sentience

Most aspects of Treves et al.’s target article are commendable, but I would suggest: explicitly including (1) Singer’s ‘equal interests’ principle; adjusting (2) Mathews’s principle of ‘bioproportionality’; and clarifying the implications of (3) Parfit’s Non-Identity Problem, (4) the limits of present predictions of future needs, and (5) the application of the concept of selves to biotic individuals. There is also a problem about (6) how plants are to be individuated.


Just Preservation: From Vision To Reality, Rupu Gupta Jan 2019

Just Preservation: From Vision To Reality, Rupu Gupta

Animal Sentience

Treves et al. propose a tangible shift in current discourse and practice related to the human relationship with other forms of nature. They aim to instill an ethical stance in human perspectives on nature, advocating the idea of trustees as advocates for non-human nature in consensus-building scenarios. This commentary raises questions about the practicality of a wide-scale culture shift in values towards non-human nature, and the power dynamics that are inevitable in multi-stakeholder settings.


Granting Political Representation To Non-Humans, Joe Gray Jan 2019

Granting Political Representation To Non-Humans, Joe Gray

Animal Sentience

This commentary discusses the representation of individuals versus populations — human and nonhuman, present and future — in Treves et al.’s proposed trusteeship for futurity. Terminological questions are also discussed.


Reconciling Just Preservation, Shelley M. Alexander Jan 2019

Reconciling Just Preservation, Shelley M. Alexander

Animal Sentience

Treves et al.’s target article can play an important role in reconciling the needs of future generations and non-human animals in conservation. Human capacities are adequate for interpreting and defining many non-human animal needs. Worldviews are more complex, however, and conservation science, like the target article itself, suffers from a lack of diversity and inclusiveness. This may pose practical impediments to realizing just preservation.


The Intrinsic Value Of Nature, Joanna E. Lambert Jan 2019

The Intrinsic Value Of Nature, Joanna E. Lambert

Animal Sentience

Treves et al. explain the need to preserve the rights of nonhuman species, human youth, and future generations. Although conservation biology has claimed to have an intrinsic valuation ethic since its inception in the 1980s, many aspects of the field have taken a decidedly anthropocentric and instrumentalist trajectory. This has important consequences for conservation-related policy and practice at all scales: local, regional, and global.


Protecting Patients Who Lack A Voice, Rainer Spiegel Jan 2019

Protecting Patients Who Lack A Voice, Rainer Spiegel

Animal Sentience

Neither human young today nor future human generations nor non-human species have a voice in protecting the biosphere. Treves et al. propose courts and trustees for defending their interests. I describe an analogy with attempts to represent the interests of children and comatose patients in medicine.


Just Reductionism: In Defense Of Holistic Conservation, Bradley J. Bergstrom Jan 2019

Just Reductionism: In Defense Of Holistic Conservation, Bradley J. Bergstrom

Animal Sentience

Treves et al. (2019) argue that individual organisms should be protected by the courts. This already happens in many countries for rare and endangered species and for symbolically important species (e.g., raptors, songbirds, and bats in the U.S.), and through the international treaty for whales. But protection of these individuals stems from a focus on preserving their populations, whereas hunting of individuals is still a culturally accepted practice. Killing of individuals should be limited to valid reasons (e.g., eating the meat) and covered by fair-chase and humane-killing laws (which is not always the case). But “futurity” will not inherit present-day …


Just Preservation And The Half-Earth View, Helen Kopnina Jan 2019

Just Preservation And The Half-Earth View, Helen Kopnina

Animal Sentience

For interspecies justice, animal welfare, and animal rights, the planet needs to be divided on the basis of species' natural resource requirements. The Half-Earth View is that to maintain viable populations of the Earth's remaining species, half of landscapes and seascapes need protection from intensive economic activity. This protection is needed outside the nature preserve system, such as in agricultural areas or cities, so nature can co-exist with local communities.


Human Interests, Helen Tiffin Jan 2019

Human Interests, Helen Tiffin

Animal Sentience

Treves et al.’s proposal is welcome, but it will have to face at least four challenges: the interconnectedness of the human and the nonhuman portions of the biosphere, conflicts of interest, human overpopulation, and capitalism itself.


Intelligence, Complexity, And Individuality In Sheep, Lori Marino, Debra Merskin Jan 2019

Intelligence, Complexity, And Individuality In Sheep, Lori Marino, Debra Merskin

Animal Sentience

Domestic sheep (Ovis aries) are among the earliest animals domesticated for human use. They are consumed worldwide as mutton, hogget, and lamb, kept as wool and milk producers, and used extensively in scientific research. The popular stereotype is that sheep are docile, passive, unintelligent, and timid, but a review of the research on their behavior, affect, cognition, and personality reveals that they are complex, individualistic, and social.


Sacrificial Lambs, Clive Phillips Jan 2019

Sacrificial Lambs, Clive Phillips

Animal Sentience

Sheep evolved from the mouflon as mountain animals, able to escape predation by leaping between rock ledges. Their defense was their agility. Humans brought them to the plains, where the agility was less useful, but their lack of aggression, speed or weaponry against predators made them a prime target to become one of man’s meat providers. A perfect animal in many ways, with extraordinary perceptive powers and some remarkable cognitive skills, they are often treated with complete disregard for their welfare. Yet sheep themselves won’t tell us this, for a sheep that alerted others to its weakness really would be …


Is Knowing Enough To Change Human Attitudes And Actions?, Liv Baker Jan 2019

Is Knowing Enough To Change Human Attitudes And Actions?, Liv Baker

Animal Sentience

Marino & Merskin present evidence on key aspects of cognition, such as theory of mind, learning, emotional valence, and sociality, to make a convincing argument that sheep are due consideration as individual sentient beings. With this information, what will it take to produce a real, meaningful shift in our attitudes and actions towards other animals, including a species as disadvantaged as sheep? What else do we need to know?


Casting A Sheep’S Eye On Science, David M. Peña-Guzmán Jan 2019

Casting A Sheep’S Eye On Science, David M. Peña-Guzmán

Animal Sentience

Marino & Merskin review evidence that sheep are not just passive and reactive creatures. They have personalities that vary from individual to individual and endure over time. It follows that we must rethink what it means to study them scientifically.


Far More To Sheep Than Meets The Casual Eye, Bernard Rollin Jan 2019

Far More To Sheep Than Meets The Casual Eye, Bernard Rollin

Animal Sentience

Marino & Merskin’s survey of the cognitive and social capacities of sheep is an eye-opener about the individuality and emotionality of this most maligned of all farm animals. My own eyes had already been opened by an adopted orphaned lamb, so much more like a dog as a companion animal than the mindless robot I had been conditioned to expect. I am morally certain that Marino & Merskin’s survey will have a similar effect on readers open to changing their minds.


Sentient Animals Do Not Just Live In The Present, John Webster Jan 2019

Sentient Animals Do Not Just Live In The Present, John Webster

Animal Sentience

Sheep are particularly well-equipped with the cognitive and emotional skills appropriate to their phenotype and natural environment. These include spatial memory, the benefits of safety in numbers, and the ability to recognise special individuals in large flocks by sight and by sound. Marino & Merskin’s target article reviews convincing evidence on whether sheep are more or less clever than other mammalian species. Sheep are very good at being sheep. But sentient animals do not just live in the present. Their emotional state is not simply dictated by events of the moment. If they learn, they can cope; if not, they …


Positive Sentience Is Underrated, Teya Brooks Pribac Jan 2019

Positive Sentience Is Underrated, Teya Brooks Pribac

Animal Sentience

My commentary focuses on two aspects of ovine (well-)being considered in the review: the developmental context and (un)fulfilled potentialities.


Sheeple? The Need For More Research On Sheep Cognition, Michael Colombo, Damian Scarf Jan 2019

Sheeple? The Need For More Research On Sheep Cognition, Michael Colombo, Damian Scarf

Animal Sentience

Marino & Merskin (2019) provide a comprehensive review of the cognitive abilities of sheep. If research with other animals is any guide, there may be justification for the view that the abilities of sheep have been underestimated, and their review will likely stimulate more research into sheep cognition.


Sheep In Aesop’S And Phaedrus’S Fables, Matteo Colombo, Chiara Raucea Jan 2019

Sheep In Aesop’S And Phaedrus’S Fables, Matteo Colombo, Chiara Raucea

Animal Sentience

Sheep feature in various animal fables. Marino & Merskin suggest that “we” view sheep as “docile, passive, unintelligent, and timid,” but animal fables do not support this view. In Aesop’s and Phaedrus’s fables, sheep are a primary target of injustice; but they are not passive targets. Sheep endure injustice actively and honestly. They are intelligent, aware and outspoken about their own condition.