Recent research shows that plants, including trees, can emit ultrasonic sounds when stressed, such as during dehydration or damage. These high frequency clicks, caused by cavitation in their vascular system, are inaudible to ZZ Plant Black Raven, Live Indoor Plant The world's first Generation IV nuclear power plant starts its commercial operation in China Foro Nuclear Are pothos toxic to people and require gloves? BMW Motorrad's new plant in Brazil begins production Autocar Professional Learn How to Harvest Coriander Seeds