Bernese Mountain Dog

The Bernese Mountain Dog, called in German the Berner Sennenhund, is a large-sized breed of dog, one of the four breeds ofSennenhund-type dogs from the Swiss Alps. The name Sennenhund is derived from the German Senne (“alpine pasture”) and Hund(“dog”), as they accompanied the alpine herders and dairymen called Senn. Berner (or Bernese in English) refers to the area of the breed’s origin, in the canton of Bern in Switzerland. This mountain dog was originally kept as a general farm dog. Large Sennenhunde in the past were also used as draft animals, pulling carts. The breed was officially established in 1907. In 1937, the American Kennel Clubrecognized it as a member of the Working Group.

Weight	Male	80–120 lb (35–55 kg)
	Female	75–100 lb (35–45 kg)
Height	Male	25–27.5 in (64–70 cm)
	Female	23–26 in (58–66 cm)
Coat	Double
Color	Tricolor (black, rust, and white)
Litter size	average 5-7, up to 15
Life span	7-8 years

source : wikipedia