Don't let his size and lion-like looks fool you; the Leonberger is a big bundle of love. Bred as farm dogs and family companions, Leonbergers are eager to please and, with their love of children, are wonderful family dogs. Because they respond so well to training, they also make excellent therapy dogs. Leonberger puppies grow up to be surprisingly graceful adult dogs, who will appreciate moderate exercise and some regular training. They are shedders, so you'll want to brush that double coat regularly.