If you don’t want to start from scratch with a puppy and you want a stalwart friend by your side at all times, then an adult dog may be the best choice you ever make. We’ve all heard the phrase, “You can’t teach an old dog new tricks,” but that couldn’t be further from the truth. Adult dogs have a great attention span and eagerness to please, allowing them to learn faster than more youthful members of their species. If you’re looking for a steadfast companion who will be truly grateful for a second chance at a happy life, consider adopting a dog.