Not too long ago we human species had still believed that by being able to think that we are greater than The Animal. By actually having the capacity to imagine a Human/Animal binary in itself had somehow made us mistakenly believe We greater than Them. Along the way, we have gradually come to realise we are but another animal and have also began to suspect that God may not exist at all.
All this is very well, of course. The Faithful find it incredulous that The Atheist believe they are crazy. But at the same time The Faithful will hold the exact same incredulous view of The Atheist. ‘Why would anyone want to believe they are godless animals’, The Faithful would ask.
I would go as far to say that not only are we Animal but that we are also Natural with full positive connotations. And I would also say that being able to imagine God, denounce Him, and to be able to hold on to a Us&Them viewpoint is completely natural. The Human Animal (or ‘Humanimal’) for being self-perceptivably so different to the other animals is really quite the improbability. Or perhaps eventually every life-system has its equivalent human species which goes through a patch of arrogance then humility to realise it is just another Natural Animal in exactly the same way we have.