This essay is intended to offer a stronger alternative argument in accessible language for extending ethical regard and rights to nonhuman life forms than the “speciesism equals racism” and sentience/suffering criteria approach that is widely used in the animal rights debate.
The basic animal righton position is that moral regard should not be based on any characteristic alleged to be uniquely human but instead be a general compassion principle using sentience - a basic interest in living, avoiding pain, maximizing pleasure - as the standard by which we determine the moral worth of others.
All arguments are not created equal. There are differences in their intent and the degree to which they impact an audience’s psyche. If you wish to make the strongest case for justice and respect towards nonhuman beings, then destroying human arrogance is crucial and human nature is your greatest ally in the cause.