The 38 Most Dangerous Dog Breeds In The World You Should Know About

16. Brother Bernard

The American Kennel Club lists the St. Bernard as one of the most popular dog breeds worldwide. Native to the Swiss Alps, these giant dogs are well known for their ability to perform snow rescue missions even in sub-freezing temperatures. Weighing between 120 and 140 pounds for females and 140 to 180 pounds for males, these powerful, muscular canines may act without realizing their own strength. This breed is typically intelligent and affable, but can become aggressive if not properly socialized. What children find amusing can quickly result in harm. For this reason, training is necessary for this breed as well as other breeds.