You might be interested in the “Animal Liberation” movement in the 1970s. Tom Regan (“The Case for Animal Rights”) was writing about “Animal Rights,” which I learned in contrast to Peter Singer’s “Animal Welfare” (Singer has more recently moved towards the Rights position).
I learned about this in a philosophy/ethics course, so it was framed in a jargony way, but I’ll do my best to remember. If anyone knows any better, please enlighten me - I’d love to clear the cobwebs out of this brain!
[Brief introduction to ethics]
There are two basic ways of determining what is ethical.
One, “deontology,” says that something can be inherently “right” or “wrong”, independent of consequences, and the moral value of something is determined by whether it is towards a “right” or “wrong” end. In other words, “right” determines “good”. For instance, in this society we think it is always wrong, under any circumstances, to kill your baby sister and cook her for dinner, regardless of how hungry you may be. An anti-abortion person saying that abortion is wrong under any circumstances, regardless of risks to mother’s health etc, is making use of this kind of argument.
The other way is utilitarianism or consequentialism, which says that nothing is “right” or “wrong” on its own, it is only the consequences which determine it. To determine the ethical value of an act, we basically add up the positive consequences (measured in terms of “the greatest good for the greatest number”), subtract the negative, and if the result >0 then the action is an ethical one.
In other words, the ends can justify the means. A pro-abortion person saying that yes, kiling a fetus is bad, but sometimes it is necessary, is making use of this kind of argument. (I am of course glossing over any number of important issues, like how to measure ‘greatest good’ and where distributive justice comes in, but I only mean to introduce it!)
[/introduction]
Animal Rights is basically from a “deontological” viewpoint: it is always wrong to harm an animal, or to treat it with less respect than we treat a person. Thus raising chickens, even with lots of nice food and open fields, is akin to slavery, as their life is devoted to you. A lot of vegans feel this way.
Animal Welfare (and again, I must add the disclaimer that Peter Singer wrote about this years ago and has since changed his tune in a number of ways - I’m not familiar with any other advocates of this position but I’m sure they exist) is utilitarian: we should include animals in our calculation of “the greatest number”, and so rule out things like battery chickens and cosmetic testing, but we could still permit things like free-range chickens or medical testing, since the harm to the animal is outweighed by the benefits to humanity. People who don’t eat veal justify it this way.
Both original articles that I read had specific definitions of “animal” that remain highly arguable: one said “a mammal over the age of 1 year old,” for example.
A brief word, if I may, on the subject of chimps (“great apes”) :
An eternal question in the field of animal ethics is where to draw the line - how do you decide what is a moral agent/subject. Daniel has eloquently described the difference between a moral agent and a moral subject - I’d like to add that we need a question, basically, to determine what counts as a moral subject. Something along the lines of “can it feel pain” or “does it have an immortal soul” or whatever. The question must meet two criteria:
- it has to be emperically verifiable (therefore eliminating “immortal soul” stuff) and
- it must be morally relevant (therefore eliminating stuff like “humans only”)
The tricky part is coming up with a way of including “infants and imbiciles” but ruling out intelligent apes. Some people say this can’t be done (for example) and therefore great apes who are intelligent should be included in our “community of equals.”