Articles — Bernese Mountain Dog

Bernese Mountain Dogs Quick Facts:  AKC recognized in 1937 Life Expectancy: 6 - 8 years Size: Large Energy Level: Medium Recommended Crate Size: 48" dog crate*  Return to the main Dog Crate Sizes Breed Chart. Introduction Bernese Mountain Dogs, also known as the Berner Sennenhund in Switzerland, do not have a clear origin story, though they are thought to be one of the Sennenhund-type dogs from the Swiss Alps region. There is little definitive historical documentation about their history. Apparently, this breed came from Romans, used to protect and guide herds. The invaders brought the dog with them while conquering the Old World...