

What does that mean? Presumably, all animals with a brain have that quality, including humans. Can the quality be lost without destruction of the brain, ie before brain death? What about animals without a brain, like insects? What about life forms without a nervous system, like slime mold or even single amoeba?
Yes, the PETA part of that is pretty much the same. It was an attempt to get legal personhood for a non-human being.
You’re thinking of trademark law. Copyright only requires a modicum of creativity and is automatic.