Quote Originally Posted by Pannonian
Was the incident you talked about the one shown in Cousins? If so, they start off by beating the buttresses on local trees to gee themselves up (I've seen footage of US marines doing similar before a patrol), then are silent throughout the patrol until they reach the target. Some jumpiness at the start, but their movement become more deliberate as they near the borders until they form the regular column seen in the pictures. Once they reach the ridge that borders their territory, they sit in a line, scanning the valley below, still silent. When they spot something, they move off in column towards where they saw the movement. When they get there, they sit and wait and watch. Chimp comes down, fight follows.

Dolphins are supposed to indulge in even larger scale wars, but it's harder to describe their tactics in human terms, as terrain is not much of an issue, and they are too agile to follow clearly. I've certainly seen footage of two schools clashing.
Yes... I have only seen that one, but from how natural it comes to them to act this different from the percieved view of chimps, I must assume that it is in fact something they share more broadly.

You know, I have heard about this dolphin issue, just forgotten it, but isn't that more similar to lionprides fighting hyenas (or similar)? Fighting over the best territory/eliminating the worst competitors. Meaning there is a clear connection to the livelyhood of the group, while our wars (and apparently those of the chips) are often for less physical reasons, indeed sometimes for no clear reason at all besides pure hatred or bloodlust.