5. Malamute
Studies have proved that Malamutes can be rather unfriendly. Their aggression makes them a very dangerous dog breed. Their bite is fatal and professionals do not advise anyone should keep this dog at home.
6. Husky
Have a look at this cute dog! However, do not judge the book by its cover – Huskies are not that innocent. This dog breed is great for sledding. Keeping this dog as a pet is not the best idea, though. What the dog needs to feel healthy is the right climate and environment. Otherwise its character completely changes and becomes rather aggressive.