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Although pit bulls, German shepherds and rottweilers are often considered the most aggressive breeds of dog, any dog of any breed can be aggressive. Research shows that training and socialization are more important than breed in predicting aggression. According to the Smithsonian Institution, most researchers report that any puppy can grow into an aggressive dog in future. Dominance-based training methods are very often linked to increased aggressive behaviours.

• Helpful indeed
• Most loving ones
• Outdoing the humans
• Little but not the least
• Testing IQ
• A true friend
• Distant relatives
• Becoming dangerous