3. German shepherd
The shepherd was originally bred specifically for intelligence. Smart, courageous and protective, the German shepherd is one of the most dependable of companions. They learn tasks after only a few repetitions and obey commands nearly always the first time they are given. They are eager to learn new tasks as this gives them direction and purpose — very important for a shepherd. Besides being used for herding animals, they are often used as guard dogs, police dogs and search-and-rescue dogs and have even been trained by the military for parachute jumps.
They’re fairly big dogs at 24 inches and 80 pounds, but surprisingly, if they’re well-exercised, they’re not too shabby at living in a roomy enough apartment, though they much prefer a big yard to romp in.