- Some species of oak, willow, and poplar talk. When infested with a severe disease, these trees emit a chemical into the vicinity to warn other nearby trees of the attack. The neighboring trees respond by increasing tannin production as a defense against the incursion.
- Trees often interlink their roots and maintain a kind of buddy system, where they share nutrients depending on which tree needs them more.
- It seems that trees hold a conference on when to bloom, where they consent to all bloom at the same time so their predators will have such an abundant feast of food that they won't eat ever manage to eat all of it at once.
Check out this video from University of British Columbia professor Suzanne Simard for more deets. http://www.youtube.com/watch?feature=player_embedded&v=s8V0IJ11CoE
Makes you think twice about levels of consciousness, doesn't it?