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Under certain conditions—such as a lack of water or physical damage—plants vibrate and emit sound waves. Typically, those waves are too high-pitched for the human ear and go unnoticed.

Dry tomato and tobacco plants emit distinct ultrasonic clicks, scientists report March 30 in Cell. The noises sound something like a kid stomping on bubble wrap and also popped off when scientists ...

“Even the loudest ultrasonic sound blown directly into our ears would feel like nothing more than an empty, ghostly breath of wind.” Nature lovers won’t regret tuning in. (Oct.) Poet ...

Some moths are able to hear those clicks, and researchers now say they have discovered that the insects may interpret the sounds as a cue to choose on which plant to lay their eggs. The finding ...