Plants have evolved an enormous array of mechanical and chemical defenses against the animals that eat them.
These tools allow plants to survive and reproduce in the same area as herbivores and act to prevent herbivory or at least minimize damage incurred from feeding.
Plant defenses include: Mechanical protection on the surface of the plant; complex polymers that reduce plant digestibility to animals; and toxins that kill or repel herbivores.
Plants also have features that enhance the probability of attracting natural enemies to herbivores.
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