The saliva liquefies the food for them to drink. But if fly vomit isn't bad enough consider this: Flies enjoy eating more than what's on your picnic table. They feast on nasty things like feces ...

The common house fly (Musca domestica) has no venom, no stinger, and no fangs. It finds its food in a peaceful way—by rolling ...

What happens when a fly lands on your food? Flies don't have teeth or jaws to chew, so in order to feed, they release digestive enzymes onto the food to dissolve it and then suck up this liquid ...