Behind these, they would always be ready to obey and transfer their imagined superiority when there is firm and gentle guidance, with a whine maybe but never a complaint. Dogs are generally believed to have descended from wolves, hence the similarity. In antiquity, dogs that are near human settlements eat human refuse that resulted in shorter fangs, limp ears and smaller brains compared to wolves because these attributes are not being used anymore and has become unnecessary. Small dogs do not always make for behaved dogs. As if to compensate for their small size, some small dogs develop tough dog attitudes. Be prepared to do plenty of obedience training to curb their small dog aggressiveness. Mid-size dogs, on the other hand, are ideal for most kinds of keepers from children, adult to old people. Because of these qualities, the popularity of positive reinforcement in dog training grew, one of the reasons is that it is never pleasant to have an animal in the house that only obey based on fear. The dog need to fear its owner from time to time, but mostly it does not create very strong bonds. It is often more recommended to build that bond out of mutual love, not fear. Many senior dogs senior being 7 years old and above still have several years left of energy to spend. Nevertheless with senior dogs, you need not spend extra on a new couch or endure months of housebreaking. You can also enjoy the company of a calmer, less aggressive, and more tolerant pet. Senior dogs make for great pets for children and old people alike. Negative interaction could reduce their confidence, or result to aggressiveness, sometimes in ways that we could not see or predict. If your dog suddenly becomes afraid of walking it is not good to let the dog have its way. Less exercise will do the dog greater damage. If you would take him for walks, rebuild his comfort level by taking him outside for short walks. Herding dogs generally are intelligent animals. Their ability to follow commands is renowned all over the world. Herding dogs makes good family pets. However, they are most happy when they are used as workers. That is the purpose of their breeding and they are seldom happy when inactive. Herding dogs are very lively and strong and need a lot of exercise and activity.