The St. Bernard is a large dog breed known for its gentle temperament and impressive size. Originally bred in the Swiss Alps, these dogs were used by monks at the St. Bernard Pass to rescue travelers lost in snowstorms. They are recognized for their distinctive appearance, featuring a broad head, powerful build, and a thick coat that helps them withstand cold weather. St. Bernards are friendly and affectionate, making them great family pets. They are known for their loyalty and patience, especially with children. Despite their size, they are generally calm and good-natured, which contributes to their popularity as companion animals.