I probably had the most amazing sighting of 14 years  in the bush when we saw 2 male leopards having a territorial fight on the 16th of February. They walked next to one another roaring every few minutes, eventually lying down within about 10 meters from one another. The next moment they were at each others throats with the fight lasting about 2 minutes. The bigger male and father of the younger one won and walked away victorious in the knowledge that for now at least this part of his territory remains his. Have a look at a video of the fight at Game Drive Videos: Rangers.