Insects have sensory organs that allow them to detect their environment. One of the most important of these organs are ANTENNAE, which are long, thin appendages located on the head of an insect. ANTENNAE are used for sensing touch, smell, and taste, as well as for communication. They are also used to detect changes in air pressure, humidity, and temperature. ANTENNAE are essential for an insect's survival, as they help them to find food, avoid predators, and navigate their environment.