Without “nature’s sanitation service” pathogens spread into the water supply
cast of characters features in most wildlife conservation campaigns: majestic tigers, adorable pandas or other creatures that tug human heartstrings.
Vultures act as nature’s sanitation service. In India, their diet consisted largely of rotting livestock carcasses—numbering 30m a year in the cattle-revering country. A group of vultures can polish off a cow’s carrion in 40 minutes. Their strongly acidic digestive tracts destroy most germs. Without vultures, carcasses attracted feral dogs and rats. Not only do these animals carry rabies and other diseases that threaten humans, they are far less efficient at finishing off carrion. The rotting remains they left behind were full of pathogens that then spread to drinking water.
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