The cliche understanding is that dogs mark their territory with pee. At times I’ve been on walks with family and friends with half a dozen dogs. There have been occasions where they form a line just to pee in the same spot.
So how does the ownership work? Is it like a co-op? Last one to pee wins?
I have always thought of it as how graffiti taggers work. They are always tagging over each other’s work. The last one to paint gets the most exposure but you can still see remnants of more recent taggers the lay under the topmost. Eventually the oldest stuff just gets covered completely. They don’t necessarily pick their canvas because there is other work they try to cover up, they pick their canvas for the location and exposure.
They don’t. They just vandalize.