In a groundbreaking study published in the journal Cell on March 30, researchers from Israel have discovered that stressed plants, specifically tomato and tobacco plants, emit ultrasonic noises resembling the sound of bubble-wrap being popped.  These sounds, which are comparable in volume to normal human conversation, are beyond the range of human hearing but are likely detectable by insects, other mammals, and possibly even other plants. The research sheds new light on the largely unexplored world of acoustic communication among plants and other organisms. "Even in a...