Origin of the domestic dog that was the most divergent group. The study found that the skulls of the "Goyet dog" and the "Altai dog" had some dog-like characteristics and proposed that the may have represented an aborted domestication episode. If so, there may have been originally more than one ancient domestication event for dogs as there was for domestic pigs. One theory is that domestication occurred during one of the five cold Heinrich events that occurred after the arrival of humans in West Europe 37 000, 29 000, 23 000, 16 500 and 12 000 YBP. The theory is that the extreme cold during
Dog training questioned by many behaviourists. Dog training is teaching a response to cues or commands, or the performance of actions not necessarily natural to the dog, and also raising a dog accommodated to his environment by modifying natural digging, barking and eliminating behaviors. Dog training is defined as the purposeful changing of a dog's behavior. Dog training can be socialisation to the domestic environment, basic obedience training or training for specialized activities including law enforcement, search and rescue, hunting, working with livestock, assistance to people with disabilities, entertainment, dog sports, detection and protecting people or property. Although research into how dogs