Much as we love our four-legged canine friends, it's important to remember that they are still animals, and like any other animal, they have the capacity to become aggressive. Dogs are the descendants ...

(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 at the University of Helsinki ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NewsNation Now) — Smaller, older and male ...