I think yall are just making it up as you go. Tell me this, if theres 10 deer in a field and you shoot one of them. All ten deer run away. The deer you shot dint bleed a drop. Here comes the tracking dog. He gets right on the deers trail and finds it laying 400 yds from the field. I figure this is a situation that happens every day during deer season in America. What was that dog trailing? There was no blood. There were ten fresh deer trails going into the woods. How exactly do you think that dog could tell the scent of the shot deer?