Why do flies like to eat shit

Because flies like to eat liquid food rich in water. If possible, the fly's favorite food is sugar water. Because the mouthparts of flies are sucking mouthparts, they need to spit out digestive juice from their mouths to break down food into liquids before eating. The reason why many flies eat shit is mainly because there are not many flies in delicious places, so flies can't get better food and have to condescend to eat shit. The most important thing is that you don't have to worry about being swatted to death. However, if you put excrement and watermelon skin together, flies will of course choose watermelon skin because it is said to be delicious.