38 Dog Breeds That Require Extra Caution and Understanding

12. Presa Dog

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The Presa Canario, also called the Canary Mastiff, was previously used to manage livestock or frighten predators. Training and socialization are now crucial for this powerful dog. Presa Canarios are recognized for aggression when challenged. With their large paws and strong bodies, they can strike forcefully. They frequently weigh over 100 pounds and possess a bite force of 540 psi. A skilled trainer becomes necessary before introducing this dog to a household.