Agree, and so do plants when they "feel" [1] and respond [2] to external damage. [1] http://en.wikipedia.org/wiki/Plant_perception_(physiology) http://en.wikip

Agree, and so do plants when they "feel" [1] and respond [2] to external damage. [1] http://en.wikipedia.org/wiki/Plant_perception_(physiology) http://en.wikipedia.org/wiki/Plant_perception_(physiology) [2] http://en.wikipedia.org/wiki/Inducible_plant_defenses_against_herbivory http://en.wikipedia.org/wiki/Inducible_plant_defenses_agains...