This is an excellent presentation in the same thread. http://www.pbs.org/wnet/nature/episodes/what-plants-talk-about/video-full-episode/8243/ http://www.pbs.or

This is an excellent presentation in the same thread. http://www.pbs.org/wnet/nature/episodes/what-plants-talk-about/video-full-episode/8243/ http://www.pbs.org/wnet/nature/episodes/what-plants-talk-abo...