I think his bosses are just muddy. Look at the light colored tan mud half way up the drop of both horns. The one on the right does appear to be larger bodied. I would have to defer to PH on this situation. Not interested in a soft boss.
I don’t see any mud. I see pointy horn tips that haven’t dropped below the boss. Very little hair loss if any on the face and hair between the bosses and on all sides of them. The bosses have a puffy appearance. Tough to tell from a frontal photo but no signs of a dewlap starting under his chin. All signs of a young buffalo on the left. You can read Africa’s Most Dangerous by kevin Robertson if you are looking for a good resource on aging buffalo. He defines the characteristics of each age class very well in the book and is worth a read if you can find it.
