The idea that only animals can express themselves in the living world is not correct. Almost all the members of the plant world can communicate with each other. From phytoplankton to bryophyte, pteridophyte, fungus, gymnosperm and angiosperm all speak to themselves or to each other. To express this idea, a huge network called Wood Wide Web or WWW has been formed under the ground for billions of years. Through this network, a plant can provide food...