How many pairs of wings do flies possess?

Flies belong to the order Diptera, which translates to "two wings." This classification is critical to understanding their anatomy. Flies possess one pair of wings, which is a defining characteristic of this group. The structure and function of these wings allow flies to perform agile maneuvers in the air, making them highly effective fliers. In addition to the primary pair of wings, flies have evolved a pair of small, halter-like structures called "halteres," which are modified wings that help them maintain balance during flight, but these are not used for flying. This adaptation enhances their stability and maneuverability. Understanding this is important for studying insect biology and the characteristics that differentiate different insect orders.