Most carnivores have no interest in feasting on smelly rotten carcasses that they find laying around. Not only do they find it repulsive but the possibility of becoming deathly ill makes it not worth the risk of doing so. Vultures and other scavengers have adapted to this risk though, and during the process of the scavenger being rewarded for that risk, the eco-system as a whole is in turn rewarded by having vital resources returned to the system where the process is then repeated. Having the land piled up to the treetops with dead bodies or lakes containing nothing but carcasses would do those living within the eco-system no good at all."
[American Thinker]
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