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Articles 841 - 870 of 4363
Full-Text Articles in Animal Sciences
What Should We Do About Sheep? The Role Of Intelligence In Welfare Considerations, Heather Browning
What Should We Do About Sheep? The Role Of Intelligence In Welfare Considerations, Heather Browning
Animal Sentience
Marino & Merskin (2019) demonstrate that sheep are more cognitively complex than typically thought. We should be cautious in interpreting the implications of these results for welfare considerations to avoid perpetuating mistaken beliefs about the moral value of intelligence as opposed to sentience. There are, however, still important ways in which this work can help improve sheeps’ lives.
Farm Animals Are Not Humans In Sheep Clothing, Lorenz Gygax, Christian Nawroth
Farm Animals Are Not Humans In Sheep Clothing, Lorenz Gygax, Christian Nawroth
Animal Sentience
Research on the mental lives of farm animals is crucial to assess not only their physical but also their psychological wellbeing. Their current housing and handling practices are highly unlikely to meet their cognitive needs and demands, but our knowledge of their mental capacities is still limited. Although folk wisdom often refers to farm animals as dull and inflexible, recent studies show they have a rich interpretation of their environment and can solve complex problems. Yet an uncritical and anthropomorphic assessment of farm animal cognition and behaviour may lead to the attribution of an exaggerated amount of cognitive flexibility. Contrary …
What Every Shepherd Knows, Marthe Kiley-Worthington
What Every Shepherd Knows, Marthe Kiley-Worthington
Animal Sentience
The findings of the research reviewed by Marino & Merskin have been common knowledge to shepherds for millennia. Many of them are also evolutionary necessities for all mammals, especially social ones.
The Intelligence Of Sheep, David Gamez
The Intelligence Of Sheep, David Gamez
Animal Sentience
This commentary suggests how recent theories about the predictive brain could help us understand the evidence put forward by Marino & Merskin for intelligence in sheep. I contrast predictive intelligence in sheep with automatic behaviors that do not require intelligence, and I consider the flexibility of sheep intelligence.
Time To Vary The Formula, Jon Mallatt
Time To Vary The Formula, Jon Mallatt
Animal Sentience
In the past few years, Marino and her colleagues have written a series of comprehensive and helpful review articles on the cognitive, emotional, and social complexity of pigs, chickens, cows, and most recently, sheep. These articles are similarly structured, even formulaic, which has benefits but also limitations. Here, I point out the limitations in order to suggest new directions and contributions for the authors in the future.
The Problem Is Not Discourses Of Production; It Is Production Itself, Sean Hermanson
The Problem Is Not Discourses Of Production; It Is Production Itself, Sean Hermanson
Animal Sentience
The mistreatment of sheep is not because of fables, stereotypes, unconscious cultural paradigms, our collective consciousness, anthropocentricism, human arrogance, or our drive to dominate. Nonetheless, protections for sheep used in research and agriculture ought to be strengthened.
The Importance Of Research Applicability, Krista Mclennan
The Importance Of Research Applicability, Krista Mclennan
Animal Sentience
Marino & Merskin’s (2019) review contains key information about the complexity of sheep and their intelligence level, but lacks practical application. The key to making any long-term changes to sheep welfare at an industry level is by generating research that is practically relevant to the sector. The practical application of research should be considered at the design stage and in consultation with producers. Additionally, thought needs to be given to how the practical application of the research will be transferred to those people directly involved in animal care (e.g., producers, stockpersons, etc.). Focusing on the practical relevance and application of …
Domestication And Cognitive Complexity, David R. Brodbeck, Madeleine I. R. Brodbeck, Keeghan Rosso
Domestication And Cognitive Complexity, David R. Brodbeck, Madeleine I. R. Brodbeck, Keeghan Rosso
Animal Sentience
Marino and Merskin (2019) list a number of tasks that sheep can perform well. As comparative psychologists, we are not surprised by these results. Indeed, many domesticated animal species show similar abilities.
Adding Sheep To The Spectrum Of Comparative Psychology, James King
Adding Sheep To The Spectrum Of Comparative Psychology, James King
Animal Sentience
Marino & Merskin’s comprehensive review of cognitive complexity in sheep is a laudable and important contribution to comparative psychology. It is also valuable because it shows promising directions for future research on this neglected species. The relatively small number of neurons in the bovid cerebral cortex indicates that sheep cognitive performance on traditional measures of complex learning is limited. Nevertheless, the social and emotional complexity of sheep underscores the importance of further research into domains including personality and psychological well-being.
Can A Mirror Capture The Self?, Cynthia Willett
Can A Mirror Capture The Self?, Cynthia Willett
Animal Sentience
Is the mirror a reliable indicator of self-awareness for any species, whether sheep or human? Taking a cue from feminist, phenomenological, and cross-cultural philosophy, a relational self rather than a reflective one might better capture what is at stake for the lives of social animals and for science.
A Behaviorist Approach To Sheep Cognition, Intelligence, And Welfare, Lindsay R. Mehrkam
A Behaviorist Approach To Sheep Cognition, Intelligence, And Welfare, Lindsay R. Mehrkam
Animal Sentience
Marino & Merskin’s review sheds light on the complexity of the mind, learning, and cognition of sheep. Readily observable behavior has value in its own right for promoting the well-being of animals. A behavior-analytic approach can add substantially to the understanding of sheep as individuals as well as their learning capacities. The findings can also be applied to arranging their environments to promote their well-being as well as behavioral change in those responsible for their care and management.
Cognitive Dissonance About Sheep Cognition And Consumption, Catia Correia Caeiro
Cognitive Dissonance About Sheep Cognition And Consumption, Catia Correia Caeiro
Animal Sentience
Sheep are perceived as mere resources under the massive demand of the food and wool industry. Evidence that sheep cognition is comparable to that of other species may inspire reflection on sheep consumption. Dogs may be a promising comparison species.
Social Cognition In Sheep: Welfare Implications, Keith M. Kendrick
Social Cognition In Sheep: Welfare Implications, Keith M. Kendrick
Animal Sentience
More research has been carried out on social cognition in sheep than in other farm animal species. Although this has often been featured widely in the media, there is still limited public awareness of it. Marino & Merskin’s review is therefore both important and timely. In my commentary, I focus primarily on what has been established about the complexity of sheep social cognition, at the level of both brain and behavior, and on some of these findings for sheep welfare.
Sheep Are Sentient, But Not Identical, Alison Hanlon
Sheep Are Sentient, But Not Identical, Alison Hanlon
Animal Sentience
Marino & Merskin (M&M) provide a timely reminder that sheep have advanced cognitive abilities, but do we still have to provide evidence to justify animal sentience? In the EU, regulations are designed to support farm animal welfare. Whilst the regulations are imperfect, they do emphasize behavioural needs and other concepts relevant to sentience. The persistence of sheep welfare issues such as lamb mortality indicates that regulations may not be achieving their desired goal. We can quibble about the science described by M&M yet reach the same conclusion: sheep (lambs, ewes and rams) are not all identical, but they are all …
Deepening Our Understanding Of Sheep, Lori Marino, Debra Merskin
Deepening Our Understanding Of Sheep, Lori Marino, Debra Merskin
Animal Sentience
Our Response is centered on five major themes: (1) our presentation of human mythologies about sheep; (2) the relevance of cognitive complexity (“intelligence”) as a dimension underlying the way people perceive and treat sheep; (3) whether our review is too anthropocentric or anthropomorphic; (4) animal welfare versus animal rights (abolitionism); and (5) whether knowledge and education are enough to change human attitudes and behavior.
What Is In An Octopus's Mind?, Jennifer Mather
What Is In An Octopus's Mind?, Jennifer Mather
Animal Sentience
It is difficult to imagine what an animal as different from us as the octopus ‘thinks’, but we can make some progress. In the Umwelt or perceptual world of an octopus, what the lateralized monocular eyes perceive is not color but the plane of polarization of light. Information is processed by a bilateral brain but manipulation is done by a radially symmetrical set of eight arms. Octopuses do not self-monitor by vision. Their skin pattern system, used for excellent camouflage, is open loop. The output of the motor system of the eight arms is organized at several levels — brain, …
Octopus Umwelt Or Umwelten?, Luis H. Favela
Octopus Umwelt Or Umwelten?, Luis H. Favela
Animal Sentience
Even if its intelligent behaviors are the product of decentralized control systems, Mather argues that the octopus has an “Umwelt,” and, thus, a mind. I argue that Umwelt does not provide a conceptual basis for understanding the octopus as having a mind. First, Umwelt does not refer only to an organism’s perceptual abilities. Second, in providing evidence for decentralized control systems that underlie intelligent behaviors, Mather makes a case against an octopus Umwelt. Instead, the octopus is more akin to a collection of systems, or Umwelten, than a single system with an Umwelt.
Who Needs A Mind When You Have Thousands Of Fingers?, Yoram Gutfreund
Who Needs A Mind When You Have Thousands Of Fingers?, Yoram Gutfreund
Animal Sentience
Mather’s target article aligns with a common tendency of granting the octopus a mind or consciousness. But what is the meaning of an octopus’s mind? Is it part of nature or is it observer-dependent, imputed to satisfy our own psychological needs? In this commentary, I build on my own experience with octopuses to challenge the notion that we can conclusively attribute a mind to an animal; and I question the scientific usefulness of doing so.
A Community Of Minds, Bennett L. Schwartz
A Community Of Minds, Bennett L. Schwartz
Animal Sentience
Mather (2019) provides an excellent overview of the literature on octopus perception, cognition, memory, and behavior. Anyone interested in cephalopod cognition and brain organization will find her target article informative and interesting. In this commentary, I challenge the idea that an individual organism must have an individual mind. Given the structure of the octopus brain and their complex behavior, one must consider the possibility that an octopus is a community of minds rather than a single mind.
The Ingenuity Of Cephalopods, Angel Guerra
The Ingenuity Of Cephalopods, Angel Guerra
Animal Sentience
I present a brief overview of the richness of cephalopod behavioral, neural and cognitive traits.
Octopi-Ing A Unique Niche In Comparative Psychology, Jennifer Vonk
Octopi-Ing A Unique Niche In Comparative Psychology, Jennifer Vonk
Animal Sentience
Mather’s work has been fundamental in informing scientists of the relatively mysterious behavior and cognition of an understudied group of animals – the cephalopods. This work helps to fill a gap in the comparative literature that has historically sought evidence for complex behavior only in species that are closely related to humans or share important ecological features such as social complexity.
What Is Good For An Octopus?, Heather Browning
What Is Good For An Octopus?, Heather Browning
Animal Sentience
Mather (2019) has brought together the current empirical research in support of the claim that octopuses possess minds; and the weight of the evidence does appear to support octopus sentience. Being sentient means an organism has welfare concerns, a subjective experience of life that can go well or poorly. Protecting welfare requires knowing what conditions will have a positive or negative impact. Understanding what is in the mind of an octopus will give us valuable insight into what is good for an octopus.
The Octopus: A Beautiful (But Disorganized) “Mind”, Jon Mallatt
The Octopus: A Beautiful (But Disorganized) “Mind”, Jon Mallatt
Animal Sentience
Mather (2019) presents convincing evidence that octopuses have minds, but in the first 85% of the target article, the evidence does not come through very clearly because it is hidden by other information and by problems with the paper’s organization. I propose ways to build a tighter argument in the author’s Response to the Commentaries.
The ‘Thing’ From This World, Sergio M. Pellis
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 Octopuses Special? Mind, Sociality And Life History, Phyllis C. Lee
Are Octopuses Special? Mind, Sociality And Life History, Phyllis C. Lee
Animal Sentience
Understanding the Umwelt or being-ness of an octopus is a fascinating problem. Mather’s review provides us with significant insights into the ways of living of non-humans that exploit a perceptual and physical world we can only guess at. Octopus “distributed minds” call into question our primate-based understandings of the importance of sociality and the pace of life in the evolution of complex perceptual and behavioural abilities.
Are Our Ideas About Octopus Life Too Anthropomorphic To Help?, Kenneth J. Aitken
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
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.
Cephalopod Molluscs, Causal Models, And Curious Minds, Andrew W. Corcoran
Cephalopod Molluscs, Causal Models, And Curious Minds, Andrew W. Corcoran
Animal Sentience
Mather (2019) presents a compelling case in favour of octopus mind. Surveying an impressive array of empirical literature, she identifies the creature’s playful, inquisitive behaviour as emblematic of a distinctively mental form of agency. I offer an alternative perspective in which curiosity and play are construed as constitutive processes in the emergence of the (predictive) mind.
Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino
Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino
Animal Sentience
Mather argues convincingly for the existence of minds in octopuses based largely on laboratory experiments. Many of these experiments are highly invasive and involve mutilation and death. Moreover, octopuses are now being hailed as a “new model” for biological research and are being enthusiastically bred in captivity, both for research and for food. We argue that the compelling evidence for mind in octopuses must be accompanied by intense scrutiny of the ethics that shape how we treat them and that the intrinsic value of their individual lives must be recognized.
The Perfecting Of The Octopus, Ila France Porcher
The Perfecting Of The Octopus, Ila France Porcher
Animal Sentience
Cephalopods split away from the phylogenetic tree about half a billion years ago, and octopus evolution has been accelerated by an extremely low survival rate. This helps explain why this unusual animal presents qualities found in no other. It has a radially organized nervous system with a processing centre for each of its eight tentacles. Yet, although this might suggest that each tentacle has its own centre of consciousness, it remains just one animal, with one mouth to feed, and one life to lose, and it behaves as if it is centrally controlled. Its capacity for a range of intelligent …