There are many cultures and parts of the world where dogs are considered dirty and dangerous and should not be anywhere near the home.

Now you and I know rather differently, but those places are still going through their own 'journey of discovery' when it comes to animal intelligence and social benefit.

The above said, I'd have not expected a Finnish researcher to be one making such a 'new' discovery as Finnish culture does include extensive animal husbandry and dog/horse culture.