All of you are so correct! Their extreme senses are so strong and well developed. My Cali is a hearing dog so add -18 months of intense " hear everything and then address it" behaviors, sometimes makes me crazy. Sometimes I can just watch the pitch/angle of her ears and know something is going on.
Tonight she heard the music that comes on before the news I usually watch and I was down in the basement, so she came to get me to insist that I get up to the living room and pay attention - course, then she got to crawl up in my lap while we watched the news