2. German Shepherd - Top 10 Most Popular Dog Breeds

German Shepherds are known to be very loyal to and protective of the “pack”. They are intelligent canines thus they can easily be trained. However, they can be stubborn at times, as a result they need to have a human leader who can dominate them and lead the pack. They should receive socialization and obedience training at an early age. Throughout a GSD’s life, he needs firm but loving attention from his owner. Although they are not barkers, they will do so in the face of impending danger or threats. They are fiercely protective and can be a punishing fighter if the need arises.