To look at the bloodhound in biological terms is to look at the history of dogs as a whole. In this section, we will zoom back to look at the important role Canids have played in the history of the dog and its domestication as well as zoom forward into the present and the future to look at how human history intersects with dog biology. The theme then is human agency: how have humans affected the biology of dogs? In order to understand the existence of bloodhounds and the traits essential to their representation throughout culture and history, we have to first explore the way humans have shaped the biological foundations of dogs. It would be useful to examine the narrative of the bloodhounds in the following order from left to right: