ABOUT FLIES

• Flies can taste your food using their foot. 
• This is all down to taste receptors (chemonsensilla) being located on their lower legs and feet. When a fly land on a tasty meal, which can be anything from animal feces to your lunch, they will often wander around to five their next meal a good taste before consuming it.
• Flies can be a big nuisance to anyone and their constant buzzing around can really get on your nerves. For businesses, particularly those in the food and pharmaceutical industries, they can be a huge concern due to the impact they can have on consumer health. 
• As you know, house Flies like to live off a liquid diet. Because of this, their digestive system can move quite quickly, which means they defecate often. It is speculated that house Flies defecate every time they land, even if it's on their next meal.