We requested a 20 lb., low energy dog from the shelter and we were told that is what Tux would be. But he is already 40 lbs. at 7 months old. He's very loving, loves to play, run, chase squirrels, chew toys, be petted and be with his people. He loves children, cats, other dogs. He's a really good dog, just more energy that we can handle in our townhome and unfortunately, not what we had requested or need. We aren't the right fit for this amazing dog.