GOOD

In Roald Dahl’s 1949 short story “The Sound Machine,” a scientist invents a device that can hear sounds undetectable to the naked ear, and discovers, to his horror, that he is listening to the roses screaming as his neighbor cuts them.

It’s not that far-fetched. By applying various vibrations, University of Missouri researchers have determined that plants know when they are being eaten, and send out mechanisms to try to defend themselves.

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