The 9 Most Aggressive Dog Breeds Dog Temperament In the United States alone aggressive dog breeds have been responsible for as many as 35 deaths in people each year. Although statistics on aggressive dog. The 3 Most Aggressive Dog Breeds Care2 Healthy Living Think big dogs come with a big bite This study on the most aggressive dog breeds may surprise you. 25 Most Dangerous Dog Breeds List25 Mar 7 2017. Our 25 most dangerous dog breeds focuses on the potential of a dog to cause serious injury to a victim. Appearance is deceptive top most aggressive dog breeds We used to mistakenly believe that the most biting and aggressive is a large and dangerous dog breed such as Pitbull Terriers Rottweilers and Dobermans. 20 Most Aggressive Dog Breeds on the Planet Top Dog Tips Apr 16 2017. Every dog breed is different. These 20 most aggressive dog breeds are the worst for first time owners. All aggressive dogs need expert handlers. Top 20 Most Aggressive Small Dog Breeds in the World Dog. Breeds like pit bulls and rottweilers get a lot of attention as being 8220 aggressive 8221 breeds. In contrast most people think of small and toy breeds as cute clownish.