Most Rhino conflicts are settled by size and determination; whoever is biggest and baddest wins. Nothing about it is too romantic.
In Football, there is a term “Unnecessary Roughness”, which applies to more than enough rough stuff. We assume it is contrasted to usual violence, perhaps “Necessary Roughness”? Peaceful discussion is not part of the ritual, either way.
With Rhinos, issues are decided with Roughness, whatever flavor is needed. In the Wild, it is called Survival of the Species.