Do humans have a greater right to live than other animals? If so, would beings of much greater intelligence and perception hold that same right over humans?
Good questions! I've been a vegetarian for 38 years and believe that humans should not kill animals for food, clothing or sport. One way to think about this is to ask what it is that makes life valuable. Some think that life itself is valuable, but that isn't plausible given that plants are alive and it doesn't seem to be morally wrong to weed your garden. Another possibility is that what makes life valuable is sentience. If that's true, then sentient animals (and not plants) would have a moral claim on us, insofar as we have a duty to protect what is valuable. (Though one needs to ask here: what is our duty to protect what is valuable? How far does that duty extend? Are there different sorts of value, some of which have a greater claim on us than others?) Even if sentience is valuable, however, some argue that humans have capacities that are more valuable still, such as the ability to reason, to value things, to create systems of norms, even morality itself. A challenge arises here,...
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