Flies are not able to feed themselves without a head, but they still have mouthparts that function as jaws. They regurgitate digestive juices on solid food and drink through their mouthparts (called a proboscis). Flies can also taste their food with their feet.
The head is usually a small, dark capsule, and it is partially covered by the thorax. The thorax is a series of eight or 10 segments, including the abdomen, and the three segments immediately behind the head. These segments are usually segmented. The legs are fleshy, short extensions of the underside of the abdomen and serve as the means of locomotion.
Although humans cannot live without a head, some insects are able to survive without one. Roaches, for instance, can survive without a head because they can breathe through spiracles. Their brains are unable to control the spiracles. This way, they can breathe even when their bodies do not need it.
Flies can cause serious health problems for humans. They can transmit diseases, such as shigellosis and diarrhea. They can also contaminate food and cookware. They can also spread parasitic worms. These are just a few of the many problems that flies can cause.
Flies live in various types of habitats. Their habitats include forests, grasslands, and poultry ranches. Their common diet is animal feces. They are also found in garbage.