Is There a Self Illusion in Animals?

We don't know that for sure, do we? Because it's getting to the question of measuring conscious awareness. And as much as we'd like to try, we really can't get inside the consciousness of animals. So why do we not see this sort of self illusion in other animals? Why does it seem to be something that's primarily human? But I agree with you because I'm a materialist, so I don't believe that there are spirits and souls.