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Articles 1 - 30 of 1550
Full-Text Articles in Social and Behavioral Sciences
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume Three, Carolyn A. Ristau
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume Three, Carolyn A. Ristau
eBooks
In this three-volume biography, we revisit the life and accomplishments of the revolutionary scientist, Donald R. Griffin. He encountered a lifetime of initial hostile resistance to his ideas and studies; now they are largely accepted. He and a colleague discovered the phenomenon of echolocation used by bats to navigate and capture insects, proposed that birds navigate guided by such cues as the sun and stars, and suggested that animals are likely aware, thinking and feeling beings. Forty interviews with his colleagues and friends help us understand the young emerging scientist and the mature researcher. We learn about his and others’ …
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume One, Carolyn A. Ristau
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume One, Carolyn A. Ristau
eBooks
In this three-volume biography, we revisit the life and accomplishments of the revolutionary scientist, Donald R. Griffin. He encountered a lifetime of initial hostile resistance to his ideas and studies; now they are largely accepted. He and a colleague discovered the phenomenon of echolocation used by bats to navigate and capture insects, proposed that birds navigate guided by such cues as the sun and stars, and suggested that animals are likely aware, thinking and feeling beings. Forty interviews with his colleagues and friends help us understand the young emerging scientist and the mature researcher. We learn about his and others’ …
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume Two, Carolyn A. Ristau
Birds, Bats And Minds. Tales Of A Revolutionary Scientist: Donald R. Griffin. Volume Two, Carolyn A. Ristau
eBooks
In this three-volume biography, we revisit the life and accomplishments of the revolutionary scientist, Donald R. Griffin. He encountered a lifetime of initial hostile resistance to his ideas and studies; now they are largely accepted. He and a colleague discovered the phenomenon of echolocation used by bats to navigate and capture insects, proposed that birds navigate guided by such cues as the sun and stars, and suggested that animals are likely aware, thinking and feeling beings. Forty interviews with his colleagues and friends help us understand the young emerging scientist and the mature researcher. We learn about his and others’ …
A Year Of Wins For Farmed Animals, Lewis Bollard
A Year Of Wins For Farmed Animals, Lewis Bollard
General – Farm Animal Issues
Although the European Union shelved its ambitious farmed animal welfare reforms, there were other “wins” for farmed animals in 2023. There were 130 new corporate pledges to eliminate cages for laying hens and the worst abuses of broiler chickens. So far, over 1,000 corporate pledges have been fully implemented, and 39% of American hens, 60% of European hens, and 80% of British hens are cage-free, up from 6%, 41%, and 48%, respectively, a decade ago. The US Supreme Court upheld California’s Proposition 12, which bans the sale of eggs, pork, and veal from caged animals and their offspring in California. …
Animal Communication And Sentience, Catia Correia-Caeiro, Katja Liebal
Animal Communication And Sentience, Catia Correia-Caeiro, Katja Liebal
Animal Sentience
Segundo-Ortin & Calvo (S&C) argue for sentience in plants on the basis of several studies of what they describe as "cognitive abilities" in plants. As other commentaries (e.g., Brooks Pribac, 2023; Damasio & Damasio, 2023; ten Cate, 2023) have pointed out, however, there is some misuse of several concepts, and a lack of evidence for sentience. We try to clarify three questions in S&C’s discussion: (1) How is communication defined and conceptualised in animal research? (2) Is plant communication comparable to animal communication? (3) Is communication (or the process we see in plants) a good basis for inferring sentience in …
Associative Learning: Unmet Criterion For Plant Sentience, Luigi Baciadonna, Catherine Macri, Martin Giurfa
Associative Learning: Unmet Criterion For Plant Sentience, Luigi Baciadonna, Catherine Macri, Martin Giurfa
Animal Sentience
In a thought-provoking target article, Segundo-Ortin & Calvo (S&C) discuss the possibility that plants are sentient, focusing on a series of capacities normally attributed only to human and nonhuman animals. S&C propose learning as a marker for sentience. We review studies reporting associative learning in plants and find that they either lack essential controls or fail to produce replicable results. The capacity to learn has not yet been demonstrated in plants, so it cannot be used to support the hypothesis that plants are sentient. Further studies are needed. But agnosticism about sentience should not deter us from investigating unexpected new …
The Elephant In The Garden, Ila France Porcher
The Elephant In The Garden, Ila France Porcher
Animal Sentience
The other commentators on Chapman & Huffman (2018) have pointed out in different ways that despite our biological nature, there is a widespread tendency for humans to believe that we are not only superior to animals, but that we are not animals at all. Alongside our denial of animal sentience and cognition, this has resulted in the denial of our own instinctive natures. It is this denial that is our error, for it is only by understanding our true natural heritage that we can begin to change the runaway path we are on.
Plant Sentience: The Burden Of Proof, Jon Mallatt, David G. Robinson, Michael R. Blatt, Andreas Draguhn, Lincoln Taiz
Plant Sentience: The Burden Of Proof, Jon Mallatt, David G. Robinson, Michael R. Blatt, Andreas Draguhn, Lincoln Taiz
Animal Sentience
Segundo-Ortin & Calvo’s (2023) target article takes a less speculative and more evidence-based approach to plant sentience than did previous works promoting that idea. However, it retains many of the idea’s longstanding difficulties such as starting from a false dichotomy (plants must be either hardwired or sentient), not accepting the full burden of proof for an extraordinary claim, confusingly redefining accepted cognitive terms, implying cell consciousness, not adopting the most parsimonious explanations for plant behaviors, and downplaying all the counterevidence. We advise rectifying these problems before plant sentience can become a full-fledged scientific domain.
Plant Sentience: A Hypothesis Based On Shaky Premises, Carel Ten Cate
Plant Sentience: A Hypothesis Based On Shaky Premises, Carel Ten Cate
Animal Sentience
Plants may produce fascinating behavioural phenomena for which the label ‘cognitive process’ may be applicable, at least by some definitions. Segundo-Ortin & Calvo (2023) base their hypothesis that plants might be sentient on the premise of demonstrated presence of cognitive complexity. However, the way phenomena are ascribed, and how the term ‘cognitive’ is used by Segundo-Ortin & Calvo, deviates from the common practice in studies of animal cognition, implying greater complexity than seems justified. It thus provides a questionable basis for attributing sentience to plants.
Plant Sentience: "Feeling" Or Biological Automatism?, Andrea Mastinu
Plant Sentience: "Feeling" Or Biological Automatism?, Andrea Mastinu
Animal Sentience
Sentience refers to the ability of an organism to have subjective experiences such as sensations, emotions and awareness. Whereas some animals, including humans, are widely recognized as sentient, the question of whether plants are sentient is still debated among scientists, philosophers, and ethicists. Over the past 20 years, many scientists such as Trewavas, Baluška, Mancuso, Gagliano, and Calvo have reported interesting discussions about memory, behavior, communication, and intelligence in plants. However, the reported conclusions have not convinced the entire scientific community. In this commentary, I would like to focus on two critical aspects related to sentience: cognition and emotion
Plant Sentience: Bias And Promise, Sidney Carls-Diamante
Plant Sentience: Bias And Promise, Sidney Carls-Diamante
Animal Sentience
Whichever side of the debate one chooses, plant sentience is a fertile research area that challenges received views and assumptions, generates novel insights, and suggests new ways that felt states might arise. My commentary discusses methodological and philosophical implications.
From Animal To Plant Sentience: Is There Credible Evidence?, Leonard Dung
From Animal To Plant Sentience: Is There Credible Evidence?, Leonard Dung
Animal Sentience
Segundo-Ortin & Calvo argue that plants have a surprisingly varied and complex behavioral repertoire. Which of these behavioral capacities are credible indicators of sentience? If we use the standards of evidence common in discussions of animal sentience, the behavioral capacities reviewed are insufficient evidence of sentience. Even if some putative indicators of animal sentience are present in plants, it is not clear whether what we should conclude is that plants are sentient or that those indicators are inadequate.
Plants Lack The Functional Neurotransmitters And Signaling Pathways Required For Sentience In Animals, David G. Robinson, Michael R. Blatt, Andreas Draguhn, Lincoln Taiz, Jon Mallatt
Plants Lack The Functional Neurotransmitters And Signaling Pathways Required For Sentience In Animals, David G. Robinson, Michael R. Blatt, Andreas Draguhn, Lincoln Taiz, Jon Mallatt
Animal Sentience
We cannot agree with Segundo-Ortin and Calvo that plants are sentient organisms. We have critically examined several aspects of their target article, and find their claims are not supported by the published evidence. We address these claims in sections on whether plants have a ‘neurobiology’ analogous to that of animal nervous systems, including neurotransmitters and synaptic receptors that respond to anesthetics; and whether plant signaling resembles neural transmission. For the latter, we especially consider the unique way plants signal their responses to wounding. Although the plant vascular system has been compared to the animal nervous system, animal blood vessels would …
Plants Detect And Adapt, But Do Not Feel, Paul C. Struik
Plants Detect And Adapt, But Do Not Feel, Paul C. Struik
Animal Sentience
Plant sentience is a hot topic in scientific and popular media. There are moral reasons to respect both the service of plants to humanity and their natural integrity as creatures playing their own significant role in a complex ecosystem. However, to infer that plants have certain cognitive capacities that are present also in certain human and nonhuman animals calls for scientific rigor beyond mere analogy. The unique capacities of plants identified by Segundo-Ortin & Calvo are not necessarily linked to sentience. Nor is it likely that sentience is an evolutionary trait that is present to some extent in all living …
Questions About Sentience Are Not Scientific But Cultural, Yoram Gutfreund
Questions About Sentience Are Not Scientific But Cultural, Yoram Gutfreund
Animal Sentience
Abstract: The findings of complex cognitive-like behaviours in plants are surprising and exciting. However, they do not provide a scientific reason for ascribing sentience to plants. The target article, in trying to provide evidence for sentience in plants, exposes the weakness of the science of animal consciousness in general. In this commentary, I try to explain why the scientific method is incapable of resolving the question of which organisms or systems are sentient.
Comparing U.S. Groups’ Openness To Pro-Animal Actions, Jo Anderson, Zach Wulderk
Comparing U.S. Groups’ Openness To Pro-Animal Actions, Jo Anderson, Zach Wulderk
USA
As animal advocates know, an outreach tactic that is successful with one person will not necessarily be successful with all people. Advocates rarely launch campaigns with no idea of who will be seeing their ‘asks’ (i.e., requests for pro-animal actions). Even in the case of passive tactics such as billboards, advocates may know who frequents that part of the city. For example, they may be near a university, meaning their audience will include a high proportion of students. The United States public is diverse and groups of people can differ greatly in their opinions. Rather than taking a one-size-fits-all approach, …
Insentient “Cognition”?, Stevan Harnad
Insentient “Cognition”?, Stevan Harnad
Animal Sentience
A sentient state is a state that it feels like something to be in. Cows have them, cars don’t. Cognitive capacities are a subset of behavioral capacities. Not all behavioral capacities are cognitive (but the distinction is fuzzy). Might the difference have something to do with whether the behaver is sentient?
Unveiling The Nexus: The Interdependence Of Animal Welfare, Environment & Sustainable Development, World Federation For Animals (Wfa)
Unveiling The Nexus: The Interdependence Of Animal Welfare, Environment & Sustainable Development, World Federation For Animals (Wfa)
Nexus – UNEP – Animal Welfare, Environment, Sustainable Development
On 2 March 2022, the UN Environment Assembly (UNEA) adopted the Animal Welfare - Environment - Sustainable Development Nexus Resolution. In this resolution, UNEA acknowledged that "animal welfare can contribute to addressing environmental challenges". UNEA further acknowledged animal welfare's contribution to "promoting the One Health approach and achieving the Sustainable Development Goals." To understand these links, UNEA requested the UN Environment Programme (UNEP) to analyse and produce a report for the next convening of UNEA on the nexus between animal welfare, the environment, and sustainable development. "Unveiling the Nexus: The interdependence of animal welfare, environment & sustainable development" illuminates the …
Bringing Back Former Vegans And Vegetarians: An Obstacle Analysis, Jo Anderson, Coni Arévalo
Bringing Back Former Vegans And Vegetarians: An Obstacle Analysis, Jo Anderson, Coni Arévalo
Diet
People have a variety of motivations for switching to plant-based diets, yet not all people who begin the transition to a vegan or vegetarian (collectively called veg*n) diet maintain it long-term. In fact, Faunalytics’ study of current and former veg*ns (2014) found that the number of lapsed (former) vegans and vegetarians in the United States far surpasses the number of current veg*ns, and most who lapse do so within a year. Are these people the low-hanging fruit for diet advocates? They could be—there are many of them and they’re clearly at least somewhat willing to go veg*n, so maybe more …
Plant Sentience? Between Romanticism And Denial: Science, Miguel Segundo-Ortin, Paco Calvo
Plant Sentience? Between Romanticism And Denial: Science, Miguel Segundo-Ortin, Paco Calvo
Animal Sentience
A growing number of non-human animal species are being seriously considered as candidates for sentience, but plants are either forgotten or explicitly excluded from these debates. In our view, this is based on the belief that plant behavior is hardwired and inflexible and on an underestimation of the role of plant electrophysiology. We weigh such assumptions against the evidence to suggest that it is time to take seriously the hypothesis that plants, too, might be sentient. We hope this target article will serve as an invitation to investigate sentience in plants with the same rigor as in non-human animals.
Language Matters, Teya Brooks Pribac
Language Matters, Teya Brooks Pribac
Animal Sentience
The term sentience tends to be associated with affective valence along with affectively neutral sensory states. In the absence of evidence for affectively laden states in plants, the use of the term sentience in the exploration of plant sensory and behavioral complexity is misleading and ethically problematic for its potential to trivialize animal sentience.
Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International
Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International
Nexus – UNEP – Animal Welfare, Environment, Sustainable Development
This Resource Document has been developed to explore the Nexus (links) between Animal Welfare, the Environment, and Sustainable Development. The document includes relevant citations and reports addressing the topics encompassed by the Nexus. It will be maintained as a “living document” (subject to revision) in the WellBeing International Studies Repository. The original document and subsequent revisions will be kept in the Repository to provide a record of the changes.
Chinese Consumers’ Attitudes Toward Animal Welfare: Behaviors, Beliefs, And Responses To Messaging, Jo Anderson
Chinese Consumers’ Attitudes Toward Animal Welfare: Behaviors, Beliefs, And Responses To Messaging, Jo Anderson
General - Animal Protection
Despite being comparatively neglected until recently, the suffering of animals in Asia is starting to command more attention from global animal advocacy activists. In particular, as the largest country in the world by both human and farmed animal population, and among the largest when measured by economy and land mass, China plays a central role here. However, the key question of how best to improve outcomes for farmed animals in China remains difficult to answer, due to the recency of the movement and a comparative lack of research on the topic.
Although China’s per capita meat consumption is lower than …
Unconscious Humans, Autonomous Machines And The Difficulty Of Knowing Which Animals Are Sentient, Marian Stamp Dawkins
Unconscious Humans, Autonomous Machines And The Difficulty Of Knowing Which Animals Are Sentient, Marian Stamp Dawkins
Animal Sentience
The framework proposed by Crump et al. still leaves much doubt about whether invertebrates such as crabs are sentient. For example, many complex behaviours - even in humans - occur without sentience. Also, simple machines could easily meet all of Crump et al.’s eight proposed criteria for sentience. Acknowledging the limitations of what we currently know about sentience is important both for formulating legislation correctly and for advancing scientific understanding of this most puzzling of biological phenomena.
Time To Stop Pretending We Don’T Know Other Animals Are Sentient Beings, Marc Bekoff
Time To Stop Pretending We Don’T Know Other Animals Are Sentient Beings, Marc Bekoff
Animal Sentience
Rowan et al.’s target article is an outstanding review of some of the history of the science of sentience, but one would have liked to see a much stronger “call to action.” We don’t need any more data to know that many other animals are sentient beings whose lives must be protected from harm in a wide variety of contexts. It is not anti-science to want more action on behalf of other animals right now.
Sentience In Decapod Crustaceans: A General Framework And Review Of The Evidence, Andrew Crump, Heather Browning, Alex Schnell, Charlotte Burn, Jonathan Birch
Sentience In Decapod Crustaceans: A General Framework And Review Of The Evidence, Andrew Crump, Heather Browning, Alex Schnell, Charlotte Burn, Jonathan Birch
Animal Sentience
We outline a framework for evaluating scientific evidence of sentience, focusing on pain experience. It includes eight neural and cognitive-behavioural criteria, with confidence levels for each criterion reflecting the reliability and quality of the evidence. We outline the rationale for each criterion and apply our framework to a controversial sentience candidate: decapod crustaceans. We have either high or very high confidence that true crabs (infraorder Brachyura) satisfy five criteria, amounting to strong evidence of sentience. Moreover, we have high confidence that both anomuran crabs (infraorder Anomura) and astacid lobsters/crayfish (infraorder Astacidea) meet three criteria—substantial evidence of sentience. The case is, …
Animal Sentience Research: Synthesis And Proposals, Andrew Crump, Heather Browning, Alex Schnell, Charlotte Burn, Jonathan Birch
Animal Sentience Research: Synthesis And Proposals, Andrew Crump, Heather Browning, Alex Schnell, Charlotte Burn, Jonathan Birch
Animal Sentience
Most commentaries on our target article broadly support our approach to evaluating evidence of animal sentience. In this Response, we clarify the framework’s purpose and address criticisms of our criteria. A recurring theme is that a framework to synthesise current evidence of sentience is not the same as an agenda for future directions in animal sentience research. Although future directions are valuable, our framework aims to evaluate existing evidence and inform animal welfare legislation.
All Living Organisms Are Sentient, Arthur S. Reber, Frantisek Baluska, William B. Miller Jr.
All Living Organisms Are Sentient, Arthur S. Reber, Frantisek Baluska, William B. Miller Jr.
Animal Sentience
We argue that all living organisms, from the simplest unicellular prokaryotes to Homo sapiens, have valenced experiences—feelings as states of preference—and are capable of cognitive representations. Bacteria can learn, form stable memories, and communicate, hence solve problems. Rowan et al.'s statement that "Subjective feelings are just that — subjective — and are available only to the animal (or human) experiencing them" is true but irrelevant. When we see a fish flopping about in the bottom of a boat we immediately recognize suffering without having a glimpse of the nature of piscine distress. Some controlled anthropomorphism can go a …
Legal Recognition Of Animal Sentience: The Case For Cautious Optimism, Jane Kotzmann
Legal Recognition Of Animal Sentience: The Case For Cautious Optimism, Jane Kotzmann
Animal Sentience
Rowan et al.’s target article provides a valuable indication of the work that was required to reach the point where animals are recognised as sentient in various laws. To ensure this work was not in vain, the language of sentience needs to be used as a moral currency to demand further cultural change involving greater human respect for animals.
The Science Of Animal Sentience And The Politics Of Animal Welfare Should Be Kept Separate, Marian Stamp Dawkins
The Science Of Animal Sentience And The Politics Of Animal Welfare Should Be Kept Separate, Marian Stamp Dawkins
Animal Sentience
Although linked historically by Rowan et al., the scientific study of animal sentience and political campaigns to improve animal welfare should be kept separate, for at least two reasons. First, the separation makes it clear that standards of evidence acceptable for ethical or political decisions on animal welfare can be lower than those required for a rigorously scientific approach to animal sentience. Second, it helps to avoid confirmatory bias in the form of giving undue weight to results that are in line with pre-conceived ideas and political views.