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

32. Black Russian Terrier

These strong dogs are built of muscle and fur. But don't be fooled by their thick, fluffy fur. Russian Black Terriers are known to be strong dogs that are intelligent and confident. Russian Black Terriers may make good house companions because they have a long history of being taught to protect and defend at all costs. However, that changes if you have small children. They can weigh up to 140 pounds, and because of their size, they are at risk for self-harm. If there's one thing to be careful of, it's that you shouldn't take them lightly.