How do carnivorous plants capture insects?

Carnivorous plants have evolved specialised structures to attract, trap, and digest insects to supplement their nutrient intake. Venus flytraps, for example, close their modified leaves quickly when trigger hairs are touched twice. Pitcher plants lure prey with nectar and trap them in a slippery, liquid-filled cavity where they drown and are digested by enzymes. Sundews have sticky, gland-covered tentacles that ensnare insects, slowly wrapping them as digestion begins. These adaptations help carnivorous plants thrive in nutrient-poor soils by obtaining nitrogen and other nutrients from their prey.