The Bernese Mountain Dog comes from the Swiss canton of Bern, where farm dogs pulled milk carts, drove cattle and guarded the yard. It's the only long-coated one of the four Swiss mountain dog breeds, with a jet-black coat, rust markings and a white blaze and chest cross. Most weigh 70 to 115 pounds.
Berners tend to be gentle, affectionate and eager to please, calm indoors and a little goofy outside, though many are reserved with strangers. In Dallas, the coat and the heat are the two things to plan around: expect heavy shedding and a dog that needs cool floors and air conditioning. Lifespans run shorter than average, often 7 to 10 years, so be ready for health costs. Early leash training matters, because a pulling adult is hard to manage.