Water buffalo generally give the appearance of being placid – slow dull gentle giants. Bovine, even. 500+ kilos of docility.
There’s a loud clashing of heads, a locking of horns, and then they use their thick muscular necks to try and overwhelm their opponents. And those phenomenal horns can (and do) inflict serious wounds.
Eventually one triumphs, and the vanquished buffalo runs away, closely pursued by the victor.
Any humans in the vicinity had best get out of the way!
At Sa’adan Ulusalu, Toraja Utara, Sulawesi Selatan