It is not surprising that researchers at the Francis Crick Institute have discovered that as far back as the Ice Age, there were different types of dogs with distinct types of DNA. They were able to extract DNA from ancient bones.
Their research has posed new questions about the history of dogs. For example, often the type of dog that lived with people reflect the changes in the human lifestyle. But in some cases, the dog history does not reflect or mirror the lifestyle of humans. This mystery has yet to be solved.
The study also points out that scientists have not been able to determine where and in which cultural context, dogs were first domesticated.
Is it possible that God created dogs as dogs, domestic from the beginning? Some people believe in Creationism rather than evolution. The Institute for Creation Research has some very interesting material. Whatever you believe, the mystery continues.