With cats, who are solitary hunters, I understand that they want a safe look-out, But with dogs, someone has to be “on top” of the pack. And is assigned the highest spot.

I understand that dogs don’t understand spatial relationships, so see nothing wrong with occupying the center of a bed—and have no concept of fear of falling from an edge. Or crossing the street when a car is approaching. I’ve had dogs accept the pecking order that their place is not on the furniture. But why do dogs always want the highest spot they are allowed? Why do they sometimes think they get the couch and the human find someplace else?

Often times, I’ve noticed that dogs want the highest spot when they feel worried or insecure or uncertain. I’m no dog whisperer, so I’d like to understand why they do this—and what should my response be.