Let's start at the beginning.   Dogs have been with us for at least 40,000 years. Before we were farmers, before we had domesticated any other species, there were dogs. That's worth sitting with for a moment.   The relationship between humans and dogs is older than agriculture, older than settled communities, older than most of what we think of as civilisation.   Dogs are a species in their own right. They evolved from a common ancestor shared with the grey wolf, but modern d