I can explain why/how I know these things I have observed in animals, but because we have very different beliefs about some other fundamental things, I doubt my explanations would satisfy you. Because, like most things, there is no 100% way I can guarentee that what I have concluded, from my observations, is ultimate reality.
So there is some faith, and some of what one believes about the nature of things that comes into play.
From your paraphrase of the book excerpt, I discern that you believe humans to be very much in a class by themselves, and once I believed that too. It was what I grew up believing, but the more time I spent working with animals, the more I saw that there appeared to be very few things that set us apart.
There are many animals that do not behave in ways that I would interpret as joy, fear, etc. Snakes, frogs, salamanders. I have never seen one exhibit “emotion”, they do appear to act out of instinct. Even their pain and fleeing response does not appear to be accompanied by any complex fear emotion.
On the other hand, they are not without individual traits either. They have varying temperments, some of my snakes and frogs resist handling, others are OK with it. This could be simply chemical, I don’t pretend to know.
But clearly, when you get to the level of birds, at least some species, and to mammals, it has been eeiry for me to observe how essentially alike we are in behavior and motivations.
Clearly mammals can get bored. Ever see a panther in a zoo, or an elephant pacing or rocking mindlessly? Or other repetitive motions that are recognizable signs of boredom. Clearly they have desire. I have an 8 1/2 yr old rabbit that hobbles out of her pen in the evening to “dance” in the twilight. She anxiously waits at the door of her pen to get out. Her pen is 10 ft by 10 ft. She isn’t cramped for room. She desires to get out and spend time free in a rabbits favorite time of day. Some combination of instinct and learned behavior, and some part desire. I have other rabbits who have never lived free, and danced in the twilight, and they show no desire for that which they do not know.
I could go on and on.
Ultimately, I do not know what or if there is any one clear thing that seperates humans from the other animals. I really do not.
I have never seen an animal kneel and pray, but that is not the only way to act out a connection to a spiritual reality beyond what we see. Sometimes, when in my yard, watching the rabbits stretch in the sun, the chickens taking a dust bath, the frogs chuckling in the pond and the dogs stretching with a smile on their face, we all seem to be communing, honoring and accepting the gifts of the divine in our own way. I sense a holy moment of commonality among us. We are all given the gift of being able to recognize and utilize the day the divine has provided for us, in the manner in which we are capable.
As far as no animals wearing clothes. Most have adaquate body coverings, those that dont certainly do find or create body coverings, hermit crabs, damsel fly larvae, a number of insect larvae.
I expect our different philosophies will cause us to interpret all these observations in different ways.
I think that most humans do have a level of “awareness” that is beyond that of most animals. Whether this is “the soul”, I do not know. It may be the function of a more developed cerebral cortex, I do not know. I don’t think a dog can comprehend what a brain tumor is, but there are other injuries and illness, the seriousness of which they seem to grasp and respond to.
Most humans would not understand they had a brain tumor without being diagnosed, etc. But they would still respond to the pain and eventually the dibilitation, until their awareness was affected, much the same as any other animal.
I have known people with brain tumors, who lived for years with changed personality, various neurological abnormalities, etc, unaware of the cause, and not afraid. They only became afraid when the doctor told them the diagnosis. I have seen animals suffer much dibilitation before seeming to recognize (at what level, I do not pretend to know) the terminal nature of their malady, and then either fighting or giving in to the course of things.
cheddar