A stomach that kills anthrax
Vultures have gastric acid with a pH close to 1, among the most corrosive digestive environments measured in any vertebrate. A carcass infected with anthrax, botulinum toxin, or rabies virus passes through that acid and exits neutralised. No other scavenger in India's food web does this. Jackals spread disease. Feral dogs spread disease. Vultures end it.