NASA’s DAVINCI Explores Ten Mysteries of Venus - NASA

Venus fly traps are the stuff of nightmares and the poster child for carnivorous plants, and we finally have a better understanding of exactly how they work. A study published today identified a chemical ion that surrounds the base of a Venus fly trap’s sensory hairs—the key sensor that detects the very faint touches by prey like flies. That’s critical because the nightmare plant doesn’t have any nerves. | Popular Science