PLANTS SCREAM WHEN WE FORGET TO WATER THEM
BOTANY
They sound a bit like bubble wrap being popped
Biologists from Tel Aviv University have found that plants emit sounds comparable in volume to normal human conversation when they are stressed. With frequencies of 20-100kHz, these sounds are too high-pitched for humans to hear, but it is likely they can be heard by insects and perhaps by other mammals, the researchers say.