What kind of behavior can I expect of my puppy from 5-18 months?

Adolescence can appear in smaller dogs as early as five months. In larger breeds, it can start as late as nine or ten months. In giant breeds, adolescence doesn't take place until twelve to eighteen months. In general, the larger the dog, the longer it will take to physically mature. Some breeds can remain adolescents until they are two and a half, or three years old. Adolescence is expressed in un-neutered male dogs by scent marking behavior. Scent marking behavior is stimulated by the release of testosterone into the dog's system. At this time, males may become macho. Male dogs may become less friendly and even somewhat aggressive to other male dogs. He may begin lifting his leg in the house. He may become very interested in girls, tend to roam, and certainly not interested in listening to you! Some males at this age become totally unruly. In un-spayed females, adolescence is marked by the onset of the heat cycle, estrus. During this three week period, your bitch could become pregnant. So, keep her away from all male dogs. Bitches exhibit erratic behavior during estrus. Some get real moody and insecure. Others become quite bold or even aggressive. Speak to your vet about spaying and neutering to prevent these behaviors.

Adolescence is a very difficult time for pet owners. They are surprised when their cute little puppy becomes a free and independent thinker. Adolescence is certainly a good time to start (or re institute) rigorous training. You must work hard NOW to mold the dog of your dreams. This course will teach you training methods which are based on sound knowledge of dog behavior. You will gain knowledge about dog behavior and training techniques. This knowledge will help you to get through your dog's adolescence. A dog that you view as too stupid, too old or stubborn or too spiteful can become a well mannered, enjoyable, and reliable companion.

Establish yourself as the leader of the pack. Be realistic about your expectations. You cannot expect young dogs to grow up overnight. Learn to appreciate your dog's adolescence for it is a truly wonderful time. At this time of their lives, dogs are very energetic and exuberant in their responses. They can be full of beans, but still, delightful playmates. You as the owner must learn to channel that energy and exuberance into learning, working, exercising, and playing games. It is not too late to train (or retrain) your dog to help him to become a long-lasting companion.