Origin of the domestic dog matched across Eurasia and its branch is phylogenetically rooted in the same sequence as the Altai dog (not a direct ancestor). The subclade d2 hybrid haplotypes are found in 2.6% of South-West Asian dogs. Haplogroup E: Derived from post-domestication wolf–dog hybridization in East Asia, (rare distribution in South-East Asia, Korea and Japan). Haplogroup F: Derived from post-domestication wolf–dog hybridization in Japan. A study of 600 dog specimens found only one dog whose sequence indicated hybridization with the extinct Japanese wolf. It is not known whether this hybridization was the result of humans selecting for phenotypic traits from local wolf populations
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