There are many differences and similarities between labs and shih tzu. Labrador retrievers and shih tzu look nothing alike, and in some ways act nothing the same way. If you click the link above that says “Labs”, then you will learn all about lab’s characteristics, behavior, pups, health, and history of Labrador retrievers. If you decide to click the link that says shih tzu then you will learn all about shih tzu health, behavior, medical problems, and history.