It's true that Avatar mentioned communication between tree roots -- a
great concept allegorically but also something I've heard about in the
science world.

Here's a link to one such bit of evidence.... I'm really interested in
what tree experts think about the degree and type of chemical
communication between trees, between plants.  I know there are some
herbicidal chemicals secreted as a competitive strategy, and this is
about growth inhibition factors....


Does anyone have more information about different kinds of signalling?

Thank you,  Grace
http://www.thefreelibrary.com/Root+words:+scientists+strengthen+the+case+for+subterranean+signals...-a010596772

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