The origin of the domestic dog (Canis lupus familiaris or Canis familiaris) is not clear. Whole-genome sequencing indicates that the dog, the gray wolf and the extinct Taymyr wolf diverged around the same time 27,000–40,000 years ago.[3] How dogs became domesticated is not clear, however the two main hypotheses are self-domestication or human domestication. There exists evidence of human-canine behavioral coevolution.

If you watch two dogs playing together, you will frequently see them bow. Trainers refer to this behavior as a play bow, and it is a dog's way of asking another dog to come and play. You can easily use your dog's natural playfulness to train it to take a bow. And it's a great way to end a demonstration of all the cool new dog tricks your dog has learned! Puppy Training

Scent. There are several scents that are displeasing to your dog and emitting those smells into the air near his face will go a long way to deterring him from bad behaviors. The smells are typically citronella or mint so keep in mind that if you’re also not a fan, the smell may just bother you a bit, too. This isn’t the most common collar and it can be hard to find, but if your dog is particularly sensitive to smells, this may be the best bet for you. Puppy Training
There also behavioral issues that can interfere with successful training. Urine marking is a normal dog behavior in which the animal will hike their leg and mark a certain area or object. With separation anxiety, the puppy may have accidents inside when you leave them at home alone. Some puppies become nervous or upset when their owners are away. Other puppies have a submissive or excitement urination problem. This causes them to spontaneously urinate during certain activities. Discuss these possibilities with your veterinarian or trainer if you're not getting positive results.[20]
Martingale collars are the humane successor to the choke chains of old. They operate in a similar fashion, with the collar tightening when your dog starts to pull. But because of the limited closure, it’s much safer and won’t actually choke your dog—just adjust to the size of their neck. For that reason, it’s also a great choice for pet owners whose dogs have a habit of slipping out of their leash.
Dog aggression is exhibited by growling, snarling, showing teeth, lunging, and biting. It is important to know that any dog has the potential to show aggression, regardless of breed or history. However, dogs with violent or abusive histories and those bred from dogs with aggressive tendencies are much more likely to exhibit aggressive behavior towards people or other dogs.
Despite claims that dogs show more human-like social cognition than wolves,[65][66][67] several recent studies have demonstrated that if wolves are properly socialized to humans and have the opportunity to interact with humans regularly, then they too can succeed on some human-guided cognitive tasks,[68][69][70][71][72] in some cases out-performing dogs at an individual level.[73] Similar to dogs, wolves can also follow more complex point types made with body parts other than the human arm and hand (e.g. elbow, knee, foot).[72] Both dogs and wolves have the cognitive capacity for prosocial behavior toward humans; however it is not guaranteed. For canids to perform well on traditional human-guided tasks (e.g. following the human point) both relevant lifetime experiences with humans - including socialization to humans during the critical period for social development - and opportunities to associate human body parts with certain outcomes (such as food being provided by human hands, a human throwing or kicking a ball, etc.) are required.[74] go here for more
Space used by feral dogs is not dissimilar from most other canids in that they use defined traditional areas (home ranges) that tend to be defended against intruders, and have core areas where most of their activities are undertaken. Urban domestic dogs have a home range of 2-61 hectares in contrast to a feral dogs home range of 58 square kilometers. Wolf home ranges vary from 78 square kilometers where prey is deer to 2.5 square kilometers at higher latitudes where prey is moose and caribou. Wolves will defend their territory based on prey abundance and pack density, but feral dogs will defend their home ranges all year. Where wolf ranges and feral dog ranges overlap, the feral dogs will site their core areas closer to human settlement.[38]
Do not scold your dog harshly if you catch him urinating in the wrong place. Calmly say, "No," and bring him to his potty place with a piece of soiled paper towel. Only scold your dog for going in the wrong place if you catch her in the act. Do not drag her back to a puddle to scold her. She will not understand that it is the location of the urine that is the problem and may even begin to fear urinating in front of you. dog training classes
A training class is not there to train your dog. Its purpose is to teach you to train your dog so you will need to be committed to train your dog for short sessions (5 minutes) several times a day rather than just simply turn up for classes! This little bit of training everyday will be repaid with a lifetime of living with a well behaved dog. You will also learn to avoid problems before they begin as well as receive help to overcome any that you already have with your dog. go here for more