Stressed plants make ultrasonic clicking noises
Detecting the sounds could offer a new way to monitor water stress in crops
![three plants on a table with two microphones pointed at each](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/03/032923_MR_plant-scream_feat.jpg?fit=1030%2C580&ssl=1)
Using ultrasonic microphones (pictured), scientists detected clicking noises made by various types of plants.
Ohad Lewin-Epstein