Buffalo is a herd species, a herd often lives in a separate territory, a herd usually has more than 100 heads.

A war broke out here.
Perhaps they are fighting for territory, or during the breeding season they are fighting for their offspring. It is also possible that this is a battle to find the strongest to become the leader.
Both sides are equally talented with extremely large and strong horns, a strength that frightens many species.

The battle took place extremely fierce, the two sides were equally talented, butting each other, causing the enemy many losses.
Neither side accepts the other, it seems that the buffaloes want to use all their abilities to win.
In the end, victory and defeat were determined, the weak ran first to preserve their lives.