Have you ever wondered how humans and dogs became such uniquely well-suited companions? Scientists have started studying the deep connection between humans and their trusted canine companions, trying to find not only the origins of this relationship but how the relationship has changed both humans and dogs.

One part of the documentary details an ongoing study in Russia regarding silver foxes and using these animals to find out domestication happens over generations. One of the most interesting things that they discovered is that as the species became domesticated, the actual physical aspects of the silver foxes began to change and they began--after many generations--to look like . . . you guessed it, dogs! Their muzzles shortened, their fur color changed, the shape of their skulls transformed. 

Another segment explored the communication that occurs between dogs and humans. Dogs, like humans, read human faces to understand and monitor emotion. In one study, dogs were able to follow instructions from humans in ways that no other animals, not even other primates, could. And from the human side, dog owners listened to the barks of dogs unknown to them and, in the majority of cases, were able to tell from the bark to what situation the dog was responding--if it was lonely, wanted something, wanted to play, or was giving a warning.

As a life long lover of dogs, I found this documentary fascinating. I would highly recommend it if you'd like to know more about the mysterious and wonderful relationship that exists between humans and dogs.

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