Watch out vegetarians, plants might be able to hear you coming! Biologist Dr Monica Gagliano and Bio-inspired engineer Dr Rob Malkin show Sam and Si how to listen in on noise made by plant roots. It may be too early to tell if they’re making noises intentionally, but timelapse footage shows that other plants can detect the sounds and fire into action!

aphid-and-plant-pic

Note that the lower photo communication between plants to defend against aphids would not work if the plants are in adjacent pots but not connected via fungus in soil.

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