@ossobuco,
osso, Thanks for the pic and the link. I've read about this dog. Pilley was working with the right breed. And I suspect that if other people put in the time and training that he did, there would be other dogs with big vocabularies.
I've always felt in my gut that animals were smarter than we gave them credit for. And that they had emotions we didn't give them credit for. Not all animals. But many.
Regardless of my views, the fact is that Chaser is a genius. Wow. Good face on that canine, too.