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A laboratory study with zebra mbuna and ocellate river stingray has demonstrated that these fish can add and subtract 'one' from 2, 3, or 4. The fish had to learn that if presented with, say, 3 yellow symbols, then in a subsequent choice test between 2 and 4 symbols they had to choose 2 to get a food reward (thus, yellow meant "choose one less ...
Hare's philosophy of two-level utilitarianism has been a focus of Varner's since the early 2000s, and was the subject of his Personhood, Ethics, and Animal Cognition. [2] [7] In the book, Varner breaks with his previous biocentrism, instead endorsing sentientism (the idea that sentience is necessary and sufficient for moral considerability ...
Simon Knutsson and Christian Munthe argue that from the perspective of virtue ethics, that when it comes to animals of uncertain sentience, such as "fish, invertebrates such as crustaceans, snails and insects", that it is a "requirement of a morally decent (or virtuous) person that she at least pays attention to and is cautious regarding the ...
The book has been admired by reviewers, who have found it delightfully written, [1] undogmatic but incisive in its analysis, [2] and its account of intelligence as a subjective embodied experience elegantly told. [3] His octopus subjects come across as "uncannily personable without being at all human." [4]
Morrell authored Animal Wise: The Thoughts and Emotions of Our Fellow Creatures, which was named by Kirkus Reviews as one of the Best Books of 2013 on Nature and the Environment. [ 9 ] [ 10 ] The book documents research on animal cognition that reveals the mental and emotional lives of animals including ants, dogs, elephants, fish and parrots.
Fish fulfill several criteria proposed as indicating that non-human animals experience pain. These fulfilled criteria include a suitable nervous system and sensory receptors, opioid receptors and reduced responses to noxious stimuli when given analgesics and local anaesthetics, physiological changes to noxious stimuli, displaying protective motor reactions, exhibiting avoidance learning and ...
Most books about animal behavior, Thorndike wrote, "do not give us a psychology, but rather a eulogy of animals". Although Wolfgang Köhler's [162] experiments are often cited as providing support for the animal cognition hypothesis, his book is replete with counterexamples. For instance, he placed chimpanzees in a situation where they could ...
[2] Sapontzis also investigates the issue of wild animal suffering and whether humans have an obligation to help these animals. He questions the view that aiding these individuals is ridiculous or absurd, instead arguing that if we have the means to help an individual suffering in such a situation, we should do so; as long as we do not inflict ...
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