Watch Out For These Aggressive (But Popular) Dog Breeds

When most people adopt a dog, they want a new best friend, not a fighter. To prevent this risk, some owners may seek “non-aggressive” dog breeds. However, statistics vary wildly when it comes to dog breed aggression. Canine behavior varies based on the owner and how researchers define “aggression.” Nonetheless, these statistics label the most dangerous dog breeds, from tiny toy dogs to police dogs to the most popular dog in America for 28 years straight. Here are the most aggressive dog breeds; take each with a grain of salt.

Dachshunds Are Hunters

A dachshund bites at a competitor during a race.
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While Dachshunds may be small, they’ll still bite if they’re provoked. As hunter dogs, Dachshunds can naturally turn aggressive if they aren’t socialized or trained properly. Researchers from the University of Pennsylvania labeled Dachshunds as the most aggressive breed, especially toward their owners and other dogs.

According to a 2005 study, Dachshunds are the third most likely breed to bite children under the age of 17. They attacked at least 22 children and young adults from 1994 to 2003.