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The history of the regulation of animal research was a fundamental step towards the development of animal ethics, as this was when the term "animal ethics" first emerged. In the beginning, the term "animal ethics" was associated solely with cruelty, only changing in the late 20th-century, when it was deemed inadequate in modern society. The United States Animal Welfare Act of 1966, attempted to tackle the problems of animal research; however, their effects were considered futile. Many did not support this act as it communicated that if there was human benefit resulting from the tests, the suffering of the animals was justifiable. It was not the establishment of the animal rights movement, that people started supporting and voicing their opinions in public. Animal ethics was expressed through this movement and led to big changes to the power and meaning of animal ethics.
In 1970, Richard D. Ryder coined speciesism, a term for discrimination against animals based on their species-membership. This term was popularized by the philosopher and ethicist Peter Singer in his 1975 book Animal Liberation. The late 1970s marked the beginnings of the animal rights movement, which portrayed the belief that animals must be recognised as sentient beings and protected from unessential harm. Since the 18th century, many groups have been organised supporting different aspects of animal rights and carrying out their support in differing ways. On one hand, "The Animal Liberation Front" is an English group that took the law into their own hands, orchestrating the Penn break-in, while a group such as "People for Ethical Treatment of Animals" founded in the US, although supporting the same goals, aim for legislative gains.
Animal testing for biomedical research dates to the writings of the ancient Greeks. It is understood that physician-scientists such as Aristotle, and Erasistratus carried out experiments on living animals. After them, there was also Galen, who was Greek but resided in Rome, carrying out experiments on living animals to improve on the knowledge of anatomy, physiology, pathology, and pharmacology. Animal testing since has evolved considerably and is still being carried out in the modern-day, with millions of experimental animals being used around the world. However, during recent years it has come under severe criticism by the public and animal activist groups. Those against, argue that the benefits that animal testing provides for humanity are not justifiable for the suffering of those animals. Those for, argue that animal testing is fundamental for the advancement of biomedical knowledge.
Drug testing on animals blew up in the 20th century. In 1937, a US pharmaceutical company created an infamous drug called "Elixir Sulfanilamide". This drug had a chemical called DEG in it which is toxic to humans, but at the time was not known to be harmful to humans. Without precautions, the drug was released to the public and was responsible for a mass poisoning. The DEG ended up killing over a hundred people, causing uproar among civilisation. Thus, in 1938 the U.S. Food and Drug Administration (FDA) established the Federal Food, Drug and Cosmetic Act. This ensured the testing of drugs on animals before marketing of the product, to confirm that it would have no harmful implications on humans.
However, since the regulations have been put in place, animal testing deaths have increased. More than one million animals are killed from testing every year in the US. In addition, the deaths of these animals are considered sickening; from inhaling toxic gas, having skin burned off, getting holes drilled into their skulls.
The 3 Rs were first introduced in a 1959 book called "The Principles of Humane Experimental technique" by zoologist W. M. S. Russell, and microbiologist R. L. Burch. The 3 Rs stand for Replacement, Reduction, and Refinement and are the guiding principles for the ethical treatment of animals used for testing and experimentation:
Replacement: Avoiding using an animal for testing by switching out the animal for something non-living, such as a computer model, or an animal which is less susceptible to pain in relation to the experiment.
Reduction: Devising a plan to use the fewest animals possible; a combination of using fewer animals to gain sufficient data, and maximising the amount of data from each animal to use fewer animals.
Refinement: A decrease in any unnecessary pain inflicted on the animal; adapting experimental procedures to minimise suffering.
The Three Rs principles are now widely accepted by many countries and are used in any practises that involve the experimentation of animals.
Ethical guidelines for animal research
There is a wide range of ethical assessments regarding animals used in research. There are general opinions that animals do have a moral status and how they are treated should be subjected to ethical consideration; some of the positions include:
Animals have intrinsic values that must be respected.
Animals can feel pain and their interests must be taken into consideration.
Our treatment of all animals/lab animals reflects on our attitudes and influences us on our moral beings.
The Norwegian National Committee for Research Ethics in Science and Technology (NENT) have a set of ethical guidelines for the use of animals in research:
Respect Animal Dignity: Researchers must have respect towards the animals' worth, regardless of their value and the animals' interests as living, sentient creatures. Researchers have to have respect when choosing their topics/methods, and when expanding their research. Researchers also have to supply care that is adapted to needs to each laboratory animal.
Responsibility for considering options (Replace): When there are alternatives available, researchers are responsible for studying those alternatives for animal experimentation. When there are no good alternatives available, researchers have to consider if the research can be postponed until a good alternative are developed. While being able to justify the experiments on animals, researchers then have to be accountable for the absence of alternative options and the urge to obtain the knowledge immediately.
The principle of proportionality: responsibility for considering and balancing suffering and benefit: Researchers have to consider both the risks of pain and suffering that laboratory animals will face and assess them in the value of the relationship to the research of animals, people, and the environment. Researchers have a responsibility on whether or not the research will have improvements for the animals, people or the environment. All of the possible benefits of the study has to be considered, substantiated and specified in both the short and long run. This responsibility also entails the obligation to consider both the scientific quality of the experiment and whether or not the experiment will have relevant scientific benefits. Suffering can only be caused by animals if there is a counterbalance of substantial and probable benefits for animals, people or the environment. Since there are many methods of analyzing the harm and the benefits, research institutions have to provide training on suitable models and researchers have the responsibility to use the methods of analysis when planning any experiments on animals(see guideline 5).
Responsibility for considering reducing the number of animals (Reduce): Researchers have the responsibility to consider whether or not it's acceptable to reduce the number of animals that an experiment's plan on using and include the number necessary to both the scientific quality of the experiments and the relevance to the results only. Before the experiment, researchers have to conduct reading studies and consider alternative designs and perform the calculations that are needed before beginning an experiment.
Responsibility for minimizing the risk of suffering and improving animal welfare (Refine): Researchers have the responsibility to assess the expected effect on laboratory animals. Researchers have to lessen the risk of suffering and provide excellent animal welfare. Suffering includes pain, hunger, malnutrition, thirst, abnormal cold/heat. fear, stress, illness, injury, and restrictions to where the animal can't be able to behave naturally and normally. To find out what is a considerable amount of suffering, a researcher's assessment should be based on which animal suffers the most. Considering the animals is the deciding factor if there are any doubts about regarding the suffering the animals will face. Researchers have to consider the direct suffering that the animal might endure during an experiment, but there are risks before and after the suffering, including breeding, transportation, trapping, euthanizing, labeling, anesthetizing, and stabling. This means that all the researchers have to take into account the needs of periods for adaptation before and after an experiment.
Responsibility for maintaining biological diversity: Researchers are also responsible for ensuring that the use of laboratory animals don't disrupt or endanger biological diversity. This means that researchers have to consider the consequences to the stock and their ecosystem as a whole. The use of endangered species has to be reduced to a minimum. When there is credible and uncertain knowledge that the inclusion of animals in research and the use of certain methods may have ethically unacceptable consequences for the stock and the ecosystem as a whole, researchers must observe the precautionary principle.
Responsibility when intervening in a habitat: Researchers have a responsibility for reducing the disruption and any impact of the natural behaviors of the animals, including those who aren't direct test subjects in research, as well as the population and their surroundings. Most research and technology-related projects, like the ones regarding environmental technology and surveillance, might impact the animals and their living arrangements. In those cases, researchers have to seek to observe the principle of proportionality and to decrease possible negative impact(see guideline 3).
Responsibility for openness and sharing of data and material: Researchers have the responsibility for ensuring the transparency of the research findings and facilitating sharing the data and materials from all animal experiments. Transparency and sharing are important in order to not repeat the same experiments on animals. Transparency is also important in order to release the data to the public and a part of researchers' responsibility for dissimulation. Negative results of the experiments on animals have should be public knowledge. Releasing negative results to other researchers could give them more on the information about which experiments that are not worth pursuing, shine a light on unfortunate research designs, and can help reduce the number of animals used in research.
Requirement of expertise on animals: Researchers and other parties who work and handle live animals are required to have adequate and updated documentation expertise on all animals. This includes knowledge about the biology of the animal species in question, and willingly be able to take care of the animals properly.
Requirement of due care: There are many laws, rules, international convention, and agreements regarding the laboratory animals that both the researchers and the research managers have to comply with. Anyone who wants to use animals in experiments should familiarize themselves with the current rules.
Ethical thinking has influenced the way society perceives animal ethics in at least three ways. Firstly, the original rise of animal ethics and how animals should be treated. Secondly, the evolution of animal ethics as people started to realise that this ideology was not as simple as was first proposed. The third way, is through the challenges humans face contemplating these ethics; consistency of morals, and the justification of some cases.
Consequentialism is a collection of ethical theories which judge the rightness or wrongness of an action on its consequences; if the actions brings more benefit than harm, it is good, if it brings more harm than benefit, it is bad. The most well-known type of consequentialism theory is utilitarianism.
The publication of Peter Singer's book Animal Liberation, in 1975, gathered sizeable traction and provided him with a platform to speak his mind on the issues of animal rights. Due to the attention Singer received, his views were the most accessible, and therefore best known by the public. He supported the theory of utilitarianism, which is still a controversial but highly regarded foundation for animal research. The theory of utilitarianism states that "an action is right if and only if it produces a better balance of benefits and harms than available alternative actions", thus, this theory determines whether or not something is right by weighing the pleasure against the suffering of the result. It is not concerned with the process, only the weight of the consequence against the process, and while the consequentialism theory suggests if an action is bad or good, utilitarianism only focuses on the benefit of the outcome. While this may be able to be applied to some animal research and raising for food, there are many flaws that have been exposed in this theory. Singer made his decision to support utilitarianism on the basis of sentience, selecting that aspect as the differential factor between human and animals; the ability of self-consciousness, autonomy and to act morally. This ended up being called "The argument from marginal cases". However, another argument was made that not all beings fall under this category, as some people have a disability, which limits the way they can function as someone without, for example, if someone is in a persistent vegetative state they have no awareness of themselves or their surroundings. Thus, from this ideology, it would be ok to carry out these same tests on these humans as we do the animals. In addition, other limitations of applying utilitarianism to animal research is that you cannot measure the pain and benefit of the tests and compare them accurately. Therefore, it is estimated that they are being compared when deducing whether a test is morally right or wrong.
Deontology is a theory that evaluates moral actions based only on doing one's duty, not on the consequences of the actions. This means that if it is your duty to carry out a task, it is morally right regardless of the consequences, and if you fail to do your duty, you are morally wrong. There are many types of deontological theories, however, the one most commonly recognised is often associated with Immanuel Kant. This ethical theory can be implemented from conflicting sides, for example, a researcher may think it is their duty to make an animal suffer to find a cure for a disease that is affecting millions of humans, which according to deontology is morally correct. On the other hand, an animal activist might think that saving these animals being tested on is their duty, creating a contradiction in this idea. Furthermore, another conflicting nature of this theory is when you must choose between two imposing moral duties, such as deciding if you should lie about where an escaped chicken went, or if you should tell the truth and send the chicken to its death. Lying is an immoral duty to carry out, however, so is sending a chicken to its death.
A highlighted flaw in Kant's theory is that it was not applicable to non-human animals, only specifically to humans. This theory opposes utilitarianism in the sense that instead of concerning itself with the consequence, it focuses on the duty. However, both are fundamental theories that contribute to animal ethics.
Virtue ethics does not pinpoint on either the consequences or duty of the action, but from the act of behaving like a virtuous person. Thus, asking if such actions would stem from a virtuous person or someone with a vicious nature. If it would stem from someone virtuous, it is said that it is morally right, and if from a vicious person, immoral behaviour. A virtuous person is said to hold qualities such as respect, tolerance, justice and equality. One advantage that this theory has over the others, is that it takes into account human emotions, affecting the moral decision, which was absent in the previous two. However, a flaw is that people's opinions of a virtuous person are very subjective, and thus, can drastically affect the person's moral compass. With this underlying issue, this ethical theory cannot be applied to all cases.
Relationship with environmental ethics
Differing conceptions of the treatment of and duties towards animals, particularly those living in the wild, within animal ethics and environmental ethics have been a source of conflict between the two ethical positions; some philosophers have made a case that the two positions are incompatible, while others have argued that such disagreements can be overcome.