Plants have developed various defense mechanisms to protect themselves against herbivores. Some common strategies include producing chemicals that are toxic or distasteful to deter feeding, having thorns, spines, or prickles to physically discourage herbivores, releasing volatile compounds to attract predators of the herbivores, and even utilizing camouflage to blend in with their surroundings and avoid detection. These defense mechanisms help plants survive and thrive in their natural environment despite the presence of herbivores.