I see so many amazing behaviors being taught to dogs on this forum that I can't help but wonder about the upper levels of their potential. Have we tapped it or is it maybe beyond our imagination? I talk to my dogs and I'm sure a lot of what I say is interpreted as 'blah, blah blah, blah, BALL, blah, blah, blah, blah"; but I also believe they are capable of understanding a lot of words and phrases and an even more impressive amount of body signals we give. They seem to understand our emotions = certainly anger, and they have similar emotions of their own. They understand voice inflection even when they might not understand every word. We are, after all speaking a 'foreign language' as far as our dogs are concerned and the truly impressive thing for me is how much more our dogs understand what we are saying than we understand what they are saying. When I look at it that way, I have to ask myself, who, then, is the more intelligent being?? I find myself kindof awed. We teach them how to learn, and who knows what the 'ceiling' is for their potential -- maybe there isn't a 'ceiling' - maybe like human children, the capacity is limitless -- and both we and dogs quit learning when we lose our curiousity and sense of adventure. I'd love to hear what others think about the capacity of a dog to learn and when or why they seem to stop learning.