In order to understand Peter Singer's article "All Animals Are Equal", one has to look at his viewpoint and perspective. Singer is a utilitarian, which is someone who believes that best outcome is something that causes that greatest amount of pleasure (or the least amount of pain) for the greatest number of people. However, in this definition the word 'people' is used, as to mean only humans. This is the point that Singer is trying to argue. Who is to say that animals don't feel pain or experience happiness? …
