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12. Canaan Presa dog breed
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The Perro de Presa Canario, or Canary Mastiff, was bred for herding and guarding livestock. These dogs are muscular, confident, and have a reputation for intensity. If not properly trained and socialized, they can be aggressive and even dangerous. With a strong, dominant personality, the Presa Canario needs a firm, experienced handler to become a stable companion.
