ABSTRACT
Here is a very brief summary of a position that I have defended on many occasions, most fully in my book Animal Liberation (see Singer, 1990): our present treatment of animals is based on speciesism; that is, a bias or prejudice towards members of our own species, and against members of other species. Speciesism is an ethically indefensible form of discrimination against beings on the basis of their membership of a species other than our own. All sentient beings have interests, and we should give equal consideration to their interests, irrespective of whether they are members of our species or of another species.
