Dogs are wolves which have been bred down for something like 12,000 yrs. Domestication implies an animal which is born unafraid of humans. Different breeds of dog were bred down from different world area wolves. Wild animals are not trained, so I am not going to train mine. This is absolutely not true of predators.
Prey animals are usually able to run with the heard after a short time.
Wolves, like humans, are helpless for several months and do not possess the skills they need to survive. They also learn not to do severe injury to their packmates. A wild animal is not an untrained animal. A wild wolf is in its intense learning mode for the 2 years of its life. Few have this circumstance.