Direct link: https://www.cbc.ca/listen/live-radio/1-51-quirks-and-quarks/clip/16150976-plants-hear-pollinators-produce-sweet-nectar-response From the post: >>A new study has found that plants can respond to the distinctive vibrations of pollinating insects by activating sugar-producing genes to produce rich nectar. In contrast they respond to the sound of nectar-stealing non-pollinators by cutting back on sugar. Francesca Barbero, from the University of Turin in Italy, presented this work at a recent joint meeting of the Acoustical Society of America and 25th International Congress on Acoustics.