every puppy is adorable, whether big or small, labrador retriever or pug, no one can resist the face of a pup. 5. with a face like this and the personality to match, it’s no wonder the lab has been the most popular breed for 26 years. just you wait, though; once they’re grown and trained, these dogs are some of the smartest around. it’s no surprise that shih tzu owners have been so devoted to their pups for thousands of …