How do carnivorous plants catch their prey?

The answer

Carnivorous plants have evolved a remarkable variety of trapping mechanisms to supplement their nutrition in nutrient-poor environments. Venus flytraps use snap traps that close in about 100 milliseconds when trigger hairs are touched twice in quick succession, generating an electrical signal similar to a nerve impulse. Sundews use sticky mucilage on their leaves, pitcher plants employ slippery pitfall traps filled with digestive enzymes, and bladderworts use underwater suction traps that are among the fastest movements in the plant kingdom. Over 800 species of carnivorous plants have been identified across the world.