Dionaea (Dionaea muscipula), also known as the Venus flytrap, is one of the most well-known insectivorous plants. It is characterized by modified leaves that function as specialized traps for capturing small prey, particularly insects. The leaves grow as a basal rosette, with the tip of each leaf consisting of two opposing lobes that form the trap. The inner surface contains sensory hairs that help the plant detect the movement of prey. When an insect touches these hairs sufficiently, electrical signals are transmitted through the plant tissue, triggering a rapid movement that causes the two lobes to close. This closing movement is among the fastest known movements in plants and occurs as a result of mechanical and electrical changes within the leaf tissues. After successful capture, the trap closes more tightly around the prey. Specialized tissues then secrete digestive enzymes that help break down the animal tissues. The plant absorbs the resulting nutrients, particularly nitrogen and phosphorus, which are important because it grows in soils that are relatively poor in these elements. Insect predation does not mean that the plant is incapable of photosynthesis. Rather, it remains autotrophic and uses its prey as an additional source of mineral nutrients. The trap represents a remarkable example of leaf modification for a specialized function. Dionaea also provides an important subject for studying plant movement, electrical signaling, mineral nutrition, and adaptation to nutrient-poor environments.