4 – Doberman Pinscher
Doberman, is a medium-large breed of domestic dogoriginally developed around 1890 by Karl Friedrich Louis Doberman, a tax collector from Germany.
Doberman Pinschers were once commonly used as police dogs, but this is less common today. Dobermans can often be aggressive towards strangers, but less often to their owners.
The breed’s reputation has improved in recent years, but their size and strength are still making them potentially dangerous. The last reported case of a death caused by a Doberman in the United States happened in 2011 when an old woman was killed by her dog.