Very intelligent and easily trainable, the German Shepherd Dog, popular at all times, is a fairly active dog that loves to serve people. For her, physical activity is very important, without which she becomes disobedient and nervous.
German Shepherds get along well with children and other pets if raised with them, but their protective instinct can make them suspicious of strangers.
This breed is considered intelligent and easy to train. Some dogs, bred by irresponsible breeders, can be nervous and sensitive. If besides, this is combined with poor socialization and inadequate training, then such a dog is at high risk for aggressive and overly protective behavior.