@LostInParadise Consider this. Even after the dog gets its treat, it stays away from me. It still seems to me that there is this aspect of understanding what it should not do. Or maybe I am reading too much into this. A dog that is trained not to poop indoors also understands that as something it should not do.
After this dog gets the treat, he’s probably hoping for another. And the desire to keep one’s immediate surroundings clean is, I believe, instinctual. But as to your general point: I absolutely agree that dogs appear to understand the meaning of “Don’t do that”. I think the “Leave It” cue is a good example of this, especially because dogs do not just freeze when they hear that. They still do whatever they want, just not that one thing the human doesn’t like. That’s so clear in canine communication, too. A lot of their facial expressions and body language serve to stop other dogs. No doubt, dogs can communicate and understand the meaning of “No”.
My first dog, who was a freaking angel, once spent four hours home alone, lying on the kitchen floor, nose right next to a cheese sandwich. I had left and told her “Leave It”, but I was sure she’d eat it after 15 minutes, tops. She loved food. But she was also very, very good.
@kritiper Training, not intelligence. And animals don’t “think” the same way we humans do. Humans have two minds. A subconscious, reactive mind and a conscious thinking/reasoning mind. That’s why we consciously (being aware) “think” in words. (Also the ability to determine the concept of “self.”) Dogs, as with other animals, have only subconscious reactive minds and can only react to conditions and training/experience. There are no words or “barking” going on in their heads that we humans would relate to as conscious “thinking.” They have no ability to conceive of time or which direction the sun comes up or goes down. They can only react.
How do you know all this? There’s a neurobiological process happening when thinking occurs. Can you explain it? Because I can’t – but neurobiologists can, and they no longer believe that animals blindly react. Mammals have brains that are very similar to ours. Dog brains certainly have the areas of higher reasoning you mention. One article about this. Also, can’t you think much faster than you can speak or write? How do you know you’re actually thinking in words? What’s happening in our brains is just electrical stimulation, neurotransmitters, nerves. They don’t spell out thoughts. I think it’s much more likely that we have an unfathomable amount of neurons who are communicating in their own “language” (which we don’t understand). And because we can’t conceive of this type of knowledge transfer, we translate our thoughts to words. After all, you wouldn’t say that babies can’t think, right? Or even an adult human who has grown up alone, without access to language learning.