A new study conducted by researchers from Tel Aviv University in Israel has uncovered an intriguing aspect of plant biology: plants produce ultrasonic sounds that are beyond the range of human hearing. These sounds, described as a clicking or clicking noise, increase when the plant is stressed.

Lilach Hadani, an evolutionary biologist at the university, explained that plants regularly interact with insects and other animals, and since many of these organisms use sound to communicate, it would make sense that plants also use sound in some way. The team wanted to investigate whether plants make sounds when they are stressed, in addition to the other visible changes they experience when under duress.

The scientists recorded tomato and tobacco plants under both stressed and non-stressed conditions. They found that agitated plants emitted high-pitched sounds that humans could not detect, but could be heard over a meter radius. Meanwhile, unstressed plants remained quiet and continued with their usual activities.

While researchers have been able to distinguish between the sounds produced by stressed and non-stressed plants, they are still unsure of the exact mechanism through which plants produce these sounds. Nevertheless, this study sheds light on an intriguing aspect of plant biology and opens up new possibilities for understanding how plants interact with their environment.

By Samantha Johnson

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