I had a room mate once (who studied biology) that explained to me that the smell we smell when the grass is cut is actually a warning signal that grass expels w

I had a room mate once (who studied biology) that explained to me that the smell we smell when the grass is cut is actually a warning signal that grass expels when cockroaches or other bugs eat grass. It was always humorous because he would smoke a lot of weed and then tell me "The grass really lives man! Plants talk, plants communicate, we need to respect their feelings." I guess from this article that him being stoned didn't deter him from telling the truth.