The Bernese Mountain Dog is a large, affectionate, and gentle breed known for its striking tri-color coat (black, white, and rust). Originating in the Swiss Alps, these dogs were originally used for herding cattle and pulling carts. Bernese Mountain Dogs are calm, loyal, and great with families, including children and other pets. Despite their large size, they are known for their friendly and gentle nature. They are intelligent and eager to please, making them highly trainable, though they may have a stubborn streak. Regular exercise and grooming are necessary, as their thick coat requires maintenance. Bernese Mountain Dogs are typically laid-back but enjoy outdoor activities and being part of the family. They have a lifespan of around 7-10 years, which is relatively short for larger breeds, and can be prone to certain health issues like hip dysplasia and heart problems.