Thank you. Thank you for teaching about some of the "non verbal communication" going on in places other than the human heads. The article you posted is a great teaser to Suzanne Simard's work in the 90's (More here: https://e360.yale.edu/features/exploring_how_and_why_trees_talk_to_each_other) There is now an emerging field called plant neurobiology which I find fascinating. Here's a paper on it that you might find interesting. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634130/