The origin of the dog is from the wolf. Like a wild animal it survived thanks to the innate instincts to detect food, to defend himself, to multiply, to communicate, to show leadership, to sense approaching danger and others. Tamed and taken from human's care, many of these behaviors defined in its DNA remains undeveloped, but they can develop depending on the conditions in which they live and grow.
To your attention I present some dog behavior that are most popular and common. To achieve good results is necessary early prevent and you need learn to see and think through eyes of your four-legged buddy.