How come certain animals aren’t as repulsed by some really disgusting odors or smells?

Question

Or are they affected but they have a higher tolerance before the smell overwhelms them?

In: Biology

Answer 1

One man’s trash is another’s treasure- or in this case, one species biohazard is another’s lunch. You are repulsed by things as an evolutionary trait. Eating feces is a biohazard to you, but it’s a great food source for things that can digest it- like flies or beetles. Rotting meat is full of bacteria that will make you sick, but a Turkey vulture can handle no problem- what’s disgusting to you is the sweet smell of sustenance to them