3. German Shepherd
The third smartest dog breed is a long-time favorite among law enforcement agencies and military outfits, thanks to its loyalty and reliability in stressful situations. Surveys have shown that the German Shepherd, a working class herding dog from Germany, had the right mix of strength, endurance, focus, obedience, and trainability needed to succeed in their careers as part of the search and rescue or K9 corps. Not only that, their great personalities also make them perfect choices in jobs that require them to aid people with disabilities.
