The Great Dane does not bark much and only becomes aggressive when the circumstances require it. A steady dog, responsible and dependable. Brave and loyal, it is a good watchdog. Because of his giant size, the Great Dane should be thoroughly obedience trained when young so it will be manageable when full grown. Teach this giant dog not to lean against people, especially children.
Some individuals are dog-aggressive, especially with same sex dogs.
It is good with other dogs if it is raised with them from puppyhood. This breed may be slightly difficult to train. Dogs of even larger size are more prized. Health Problems Not a long lived breed. Be careful to buy from a conscientious breeder, as some very poor specimens are being sold to the unsuspecting public.