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Articles 961 - 990 of 5140
Full-Text Articles in Entire DC Network
How Much Should We Focus On Slaughter?, Amanda Hungerford
How Much Should We Focus On Slaughter?, Amanda Hungerford
General – Farm Animal Issues
The following newsletter focuses on the state of slaughter. Although there are some amazing groups and individuals who focus on reducing the suffering caused by slaughter, it’s only a subset of work for most organizations, and seems neglected across the farm animal movement. Should it be more of a priority? In this newsletter, I’ll consider the importance and tractability of slaughter reforms — and the arguments against them.
The 2018 Elections And Farm Animals, Lewis Bollard
The 2018 Elections And Farm Animals, Lewis Bollard
General – Farm Animal Issues
Animal advocates have always emphasized passing legislation that will protect animals but it is not obvious that, in the farmed animal area, such a focus is worth all the effort. The US Congress has never passed a law protecting animals in factory farms (the last attempt, in 2010, secured just 40 cosponsors). Even the most progressive state legislatures — California, Massachusetts, New Jersey, and New York — have rejected basic farm animal welfare bills. And advocates have had more success by other means, for instance by securing corporate animal welfare policies that exceed the strongest state laws. But even if …
Chicken Minds And Moral Standing, Kristin Andrews
Chicken Minds And Moral Standing, Kristin Andrews
Animal Sentience
Some of the cognitive traits that Marino reviews are not in themselves relevant to ethics, either for chickens or human infants, but affective traits are, among them desires.
Displaying Jealous Behavior Versus Experiencing Jealousy, Judit Abdai, Ádám Miklósi
Displaying Jealous Behavior Versus Experiencing Jealousy, Judit Abdai, Ádám Miklósi
Animal Sentience
Jealous behavior is the manifestation of complex behavioral interactions initiated by an individual who aims to maintain an important social relationship that is threatened by a rival. Researchers prefer to focus on the emotion thought to control this behavior, “jealousy,” before understanding the mechanisms of the behavior. Researchers conducting recent behavioral studies on jealous behavior in dogs are still struggling to find strong experimental evidence. Thus, the positive correlation between amygdala activation and reported aggression in dogs described in Cook et al.’s target article is far from constituting evidence for “jealousy” in dogs.
Why Humans Are Different, Tara Fox Hall
Why Humans Are Different, Tara Fox Hall
Animal Sentience
A central human problem is our inference from the fact that we are the world’s most intelligent species to the alleged fact that we are superior. This inference is not mandatory. Successfully combating this inference may require the threat of a large-scale catastrophe to our species.
Two Fallacies In Comparisons Between Humans And Non-Humans, Don Ross
Two Fallacies In Comparisons Between Humans And Non-Humans, Don Ross
Animal Sentience
The hypothesis that humans are superior to non-humans by virtue of higher cognitive powers is often supported by two recurrent fallacies: (1) that any competence shown by humans but not by our closest living relatives (apes) must be unique to humans; and (2) that grades of intelligence can be inferred from behavior without regard to motivational structures.
Human And Nonhuman Animals: Equals In Uniqueness, Uta Maria Juergens
Human And Nonhuman Animals: Equals In Uniqueness, Uta Maria Juergens
Animal Sentience
Chapman & Huffman attack the idea that humans are unique and therefore superior to nonhuman beings. They call on humankind to use their “intellect to change [their] actions.” I am in full accord with their line of thought, which differentiates uniqueness from superiority and enjoins humans to take responsible action. I suggest, however, that humans are unique with regard to cognitive fluidity. The same conclusions can be reached via another argument based on human uniqueness.
Can They Suffer?, Todd K. Shackelford
Can They Suffer?, Todd K. Shackelford
Animal Sentience
We should treat sentient nonhuman animals as worthy of moral consideration, not because we share an evolutionary history with them, but because they can suffer. As Chapman & Huffman (2018) argue, humans are not uniquely disconnected from other species. We should minimize the suffering we inflict on sentient beings — whether human or nonhuman — not because they, too, are tool-makers or have sophisticated communication systems, but because they, too, can suffer, and suffering is bad.
Why Do We Want To Think Humans Are Different?, Colin A. Chapman, Michael A. Huffman
Why Do We Want To Think Humans Are Different?, Colin A. Chapman, Michael A. Huffman
Animal Sentience
One harmful consequence of creating categories where one group is unique and superior to others is that it justifies committing negative, often atrocious, acts on the members of the inferior group. Correcting divisive human categorizations (racial superiority, gender superiority) has bettered society. Scholars have often claimed that humans are unique and superior to nonhuman animals. These claims need to be reevaluated. Many have already been refuted. Animals have been shown to outperform humans in many tasks, including cognitive ones. Here we raise the question: Has the false sense of superiority been used to justify human cruelty to animals?
Good News: Humans Are Neither Distinct Nor Superior, Anne Benvenuti
Good News: Humans Are Neither Distinct Nor Superior, Anne Benvenuti
Animal Sentience
Chapman & Huffman suggest that to correct our thinking about the supposed superiority of humans over other animals, we must train our reasoned investigation upon ourselves. Their thesis may usefully be viewed from within the general findings of the cognitive revolution in science, particularly findings that speak to the limits of rationality in everyday thought of humans. That we have failed — throughout a long history of scientific and philosophical thought — to ask fundamental questions about animal cognition and emotion is rooted in the fact that much of our thinking, feeling, and behaving is beyond our own immediate grasp. …
Using Anthropocentrism To The Benefit Of Other Species, Vanessa Wilson
Using Anthropocentrism To The Benefit Of Other Species, Vanessa Wilson
Animal Sentience
Chapman & Huffman (2018) argue that we should not consider humans as unique or superior to other animals when we have the chance to explore the diversity of the traits of other species. This is a valid and progressive point in our approach to research, but I suggest that an anthropocentric approach can have animal welfare benefits when it helps us perceive other species – especially distantly related ones such as crustaceans – in a human light.
Individuals In The Wild, Bob Fischer
Individuals In The Wild, Bob Fischer
Animal Sentience
If many wild animals have net negative lives, then we have to consider how likely it is that the good for animals, considered as individuals, aligns with the good for species, or the climate, or the preservation of wild spaces.
Human-Like Behavior And Cognition: Not A Good Starting Point, Magnus Helgheim Blystad
Human-Like Behavior And Cognition: Not A Good Starting Point, Magnus Helgheim Blystad
Animal Sentience
Chapman & Huffman make use of observations and studies that show how humans may not be as unique in our behaviour and cognition as previously thought. I wholeheartedly agree that our uniqueness might be small and that if it exists, it should not give our species any right to act cruelly towards other animals. However, this kind of logic can be problematic. I present a few of the issues in this commentary.
We Don’T Want To Know What We Know, Judith Benz-Schwarzburg
We Don’T Want To Know What We Know, Judith Benz-Schwarzburg
Animal Sentience
Why are humans so ignorant with regard to the fundamental gap between ethical claims and the status quo of the human-animal relationship? To answer this, we should include more psychological and sociological perspectives in our discussions.
What Sets Us Apart Could Be Our Salvation, Anne Fawcett, Paul Mcgreevy
What Sets Us Apart Could Be Our Salvation, Anne Fawcett, Paul Mcgreevy
Animal Sentience
We agree with Chapman & Huffman that human capacities are often assumed to be unique — or attempts are made to demonstrate uniqueness scientifically — in order to justify the exploitation of animals and ecosystems. To extend the argument that human exceptionalism is against our interests, we recommend adopting the One Welfare framework, according to which animal welfare, environmental sustainability and human wellbeing are inseparably linked. Let us distinguish ourselves from other animals by resisting our short- and mid-term Darwinian inclinations, consuming less, reproducing less, and striving for a much longer-term biological fitness for us all.
Canine Emotions: Guidelines For Research, Miiamaaria V. Kujala
Canine Emotions: Guidelines For Research, Miiamaaria V. Kujala
Animal Sentience
In the target article, I called for a discussion on the nature and extent of dogs’ emotions. The commentators generally agreed on the existence of dog emotions, but the diversity and quality of dog emotions, as well as the influence of human social cognition on perceiving dog emotions, raised more debate. To respond to the stimulating commentaries, I touch briefly on the philosophy of (canine) mind and discuss further the benefits of comparing cognition across species, secondary emotions, and the shaping of canine emotions by evolution, breeding and experience. I conclude with suggestions for future research guidelines on studies of …
Fish Sentience Denial: Muddying The Waters, Lynne U. Sneddon, Javier Lopez-Luna, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Amanda D. Currie, Donald M. Broom, Culum Brown
Fish Sentience Denial: Muddying The Waters, Lynne U. Sneddon, Javier Lopez-Luna, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Amanda D. Currie, Donald M. Broom, Culum Brown
Animal Sentience
Recent empirical studies have reported evidence that many aquatic species, including fish, cephalopods and crustaceans, have the capacity for nociception and pain, and that their welfare should be taken into consideration. Some sceptics, rejecting the precautionary principle, have denied that any study demonstrates pain or other aspects of sentience in fish. This target article discusses some of the scientific shortcomings of these critiques through a detailed analysis of a study exploring nociception and analgesia in larval zebrafish.
Defining Denial And Sentient Seafood, Jennifer Jacquet
Defining Denial And Sentient Seafood, Jennifer Jacquet
Animal Sentience
Sneddon et al. address the scientists who reject the empirical evidence on fish sentience, calling them “sceptics” and their work “denial”. This is the first article to frame the question of fish sentience in these terms, and it provides an obvious opening for social science and humanities research in the science of fish sentience. It is also worth asking what practical changes in the lives of fish might arise from the mounting evidence of their sentience. I suggest that the relationship between sentience and our sense of moral obligation is not as clear as we often assume.
Jealousy In Dogs? Evidence From Brain Imaging, Peter Cook, Ashley Prichard, Mark Spivak, Gregory S. Berns
Jealousy In Dogs? Evidence From Brain Imaging, Peter Cook, Ashley Prichard, Mark Spivak, Gregory S. Berns
Animal Sentience
Domestic dogs are highly social and have been shown to be sensitive not only to the actions of humans and other dogs but to the interactions between them. We used the C-BARQ scale to estimate dogs’ aggressiveness, and we used noninvasive brain imaging (fMRI) to measure activity in their amygdala (an area involved in aggression). More aggressive dogs had more amygdala activation data while watching their caregiver give food to a realistic fake dog than when they put the food in a bucket. This may have some similarity to human jealousy, adding to a growing body of evidence that differences …
Finding The Green-Eyed Monster In The Brain Of A Dog, Peter Singer
Finding The Green-Eyed Monster In The Brain Of A Dog, Peter Singer
Animal Sentience
That dogs show behavior suggestive of jealousy has long been known and has been demonstrated under controlled conditions. Cook et al. have now shown arousal in the amygdala when dogs see a caregiver feeding another dog. This finding has ethical significance in two respects. First, the consideration shown by the investigators for the welfare of their experimental subjects sets an example for other researchers using animals. Second, the greater understanding of the emotional lives of animals should lead to more concern for their needs.
Jealousy, Competition, Or A Contextual Cue For Reward?, Thomas R. Zentall
Jealousy, Competition, Or A Contextual Cue For Reward?, Thomas R. Zentall
Animal Sentience
Emotions are difficult to assess, even in humans. The attribution of jealousy in an animal like a dog is especially difficult because performance of a particular behavior in the context of another animal receiving a reward may not be easily distinguishable from intra-species competition or simply a response to a contextual cue for the availability of reward. The authors provide distinguishing evidence in the form of fMRI data to show that in the presence of a “fake” dog being fed, there is bilateral activation in the amygdala, an area associated with anxiety, anger, fear, and even jealousy in humans.
On Jealousy, Envy, Sex Differences And Temperament In Humans And Dogs, Eddie Harmon-Jones, Sylvia K. Harmon-Jones
On Jealousy, Envy, Sex Differences And Temperament In Humans And Dogs, Eddie Harmon-Jones, Sylvia K. Harmon-Jones
Animal Sentience
Cook, Prichard, Spivak, and Berns (2018) find that dogs’ levels of trait aggression are positively correlated with their amygdala activation when observing their caregivers giving a food to a fake dog. The authors conclude that this may provide neural evidence in dogs for the experience of jealousy, an emotion that some psychologists consider to be unique to humans. Here we explain the difference between the emotions of jealousy and envy, suggesting some ideas for future experiments that may help disentangle the experience of jealousy from that of envy in dogs. We also propose ideas for future research that may yield …
Can A Dog Be Jealous?, Yaoguang Jiang, Annamarie W. Huttunen, Michael L. Platt
Can A Dog Be Jealous?, Yaoguang Jiang, Annamarie W. Huttunen, Michael L. Platt
Animal Sentience
Whether humans alone experience complex emotions like jealousy or envy remains hotly debated, partly because of the difficulty of measuring them without a verbal report. Cook, Berns and colleagues use functional brain imaging to identify in dogs neural responses very similar to those evoked by jealousy in humans. When dogs see their caregiver reward a facsimile dog, their amygdala is activated and the strength of this response predicts aggressive behavior — just as jealousy leads to aggression in humans. The authors conclude that dogs feel something very similar to human jealousy. This novel and creative study tackles one of the …
Understanding Dogs' Neural Responses In A Food-Giving Paradigm, Zachary A. Silver, Laurie R. Santos
Understanding Dogs' Neural Responses In A Food-Giving Paradigm, Zachary A. Silver, Laurie R. Santos
Animal Sentience
In their target article, Cook et al. provide exciting new insights into dogs’ neural responses when they watch their caregivers giving food to a fake dog or placing it into a bucket. The use of fMRI in awake and unrestrained dogs is tremendously valuable for understanding canine emotionality. We worry, however, that it is too soon to conclude that the reported pattern of amygdala activation corresponds to a specific emotion. Further testing will be essential to determine whether this amygdala activation is indeed an expression of jealousy.
Fake Or Not: Two Prerequisites For Jealousy, Juliane Bräuer, Federica Amici
Fake Or Not: Two Prerequisites For Jealousy, Juliane Bräuer, Federica Amici
Animal Sentience
Cook and colleagues (2018) use a novel approach to test jealousy in dogs. Although such a non-invasive approach is more than welcome in comparative research, several methodological shortcomings limit the impact of this study. We briefly outline two main problems. (1) There is no evidence that the fake dogs in the study were perceived as real, and thus as social rivals, which would be a prerequisite for jealousy. (2) It is questionable whether dogs generally show the cognitive prerequisites for jealousy, such as attentiveness toward a social rival, the ability to understand intentions, and a sense of fairness. We suggest …
Fill-In-The-Blank-Emotion In Dogs? Evidence From Brain Imaging, Alexandra Horowitz, Becca Franks, Jeff Sebo
Fill-In-The-Blank-Emotion In Dogs? Evidence From Brain Imaging, Alexandra Horowitz, Becca Franks, Jeff Sebo
Animal Sentience
What is needed to make meaningful claims about an animal’s capacity for subjective experience? Cook et al. (2018) attempt to study jealousy in dogs by placing them in a particular context and then seeing whether they display a particular brain state. We argue that this approach to studying jealousy falls short for two related reasons. First, the relationship between jealousy and the selected context is unclear. Second, the relationship between jealousy and the selected brain state (indeed, any single brain state) is unclear. These and other issues seriously limit what this study can show. It is important not to see …
Emotional Reactions In Non-Human Animals And Social-Functional Theories Of Emotion, Gerben A. Van Kleef
Emotional Reactions In Non-Human Animals And Social-Functional Theories Of Emotion, Gerben A. Van Kleef
Animal Sentience
The debate about animal emotions relies heavily on empirical evidence, which is often open to multiple interpretations. This ambiguity allows researchers at either end of the spectrum to perceive support for their positions in study results. Thus, evidence reported by Cook and colleagues (2018) – that dogs’ trait aggression is associated with their amygdala activation when watching their caregivers feed a fake dog – may be interpreted by some as neural evidence for jealousy in dogs and by others as an artefact of the study design. I argue that the discussion should be complemented with a greater consideration of theoretical …
Sentience In Fishes: More On The Evidence, Michael L. Woodruff
Sentience In Fishes: More On The Evidence, Michael L. Woodruff
Animal Sentience
In my target article, I argued that the brains of ray-finned fishes of the teleost subclass (Actinopterygii) are sufficiently complex to support sentience — that these fishes have subjective awareness of interoceptive and exteroceptive sense experience. Extending previous theories centered on the tectum, I focused on the organization of the fish pallium. In this Response to the commentaries, I clarify that I do not propose that the fish pallium is, or must be, homologous to the mammalian neocortex to play a role in sentience. Some form of a functionalist approach to explaining the neural basis of sentience across taxa is …
Fish Consciousness, David Gamez
Fish Consciousness, David Gamez
Animal Sentience
Woodruff makes two arguments to support his claim that ray-finned fish are conscious: (1) Fish neuroanatomy has similarities with the structures in the human brain that support consciousness. (2) The complexity and flexibility of fish behaviour suggest that they are conscious. This commentary will argue that neither the neuroanatomical nor the behavioural argument can provide conclusive evidence for consciousness in fish. We should suspend judgement until we have discovered mathematical theories of consciousness that can reliably map between states of consciousness and states of the physical world.
What Can The Social Emotions Of Dogs Teach Us About Human Emotions?, Dean Mobbs
What Can The Social Emotions Of Dogs Teach Us About Human Emotions?, Dean Mobbs
Animal Sentience
It has long been believed that social emotions such as guilt and jealousy are only expressed in humans. In the case of jealousy, its adaptive value has been linked to the prevention of sexual infidelity or fairness. So why would dogs feel jealousy? I suggest that understanding how social emotions have been bred into dogs can help us understand our own emotions, including their functionality — and potentially their mechanisms.