Most aggressive dog breeds: Is your pooch on the list?

by: Sydney Kalich, Nexstar media cable

Posted: May 6, 2021 / 6:22 PM EDT
Updated: May 6, 2021 / 6:22 PM EDT

(NewsNation Now) – Smaller, older, and male dogs are most likely to growl and be aggressive than other dogs, according to a study of 23 different dog breeds.

Scientists from the University of Helsinki studied the behavior of more than 9,000 dogs to assess aggressive behavior.

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Some races are more aggressive and resort to biting or snapping attacks than others. The study published in Scientific Reports found that Rough Collies were the most aggressive breed. Miniature Poodles, Miniature Schnauzers, German Shepherds and Spanish Water Dogs were also classified as more aggressive.

This graphic was included in the study “Aggressive Behavior Is Affected by Demographic, Environmental and Behavioral Factors in Purebred Dogs” published in Scientific Reports by researchers at the University of Helsinki.

Well-balanced Labrador Retrievers and Golden Retrievers were found to be the least aggressive.

Scientists found that males are more aggressive than bitches, and their neutering does not affect them becoming more or less aggressive. In addition to size and gender, the study also examined age and anxiety as factors for aggressive behavior.

The study also found that dogs are more likely to be aggressive when they’re the owner’s first dog.

You can read the full study below:

NewsNation subsidiary KTLA contributed to this report.

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