Bernese Mountain Dogs come from the Swiss canton of Bern, where farmers used them to pull carts of milk and cheese, drive cattle and guard the farmyard. They're the only long-coated Swiss mountain dog, with a jet-black coat, rust markings, a white blaze and a white chest cross. Most weigh 70 to 115 pounds.
Berners are usually gentle, affectionate and eager to please, calm indoors with a goofy streak outside, though some are reserved with strangers. Adopters should know the tradeoffs: heavy shedding, poor heat tolerance and a lifespan of roughly 7 to 10 years, partly because of high cancer rates. Early training matters, since a pulling adult is hard to handle. Personality varies from dog to dog, so plan for the typical needs and stay open to the dog in front of you.