How does a caterpillar protect its self?

Caterpillars have a few meathods of avoiding becoming another animals lunch A few examples are : camouflage, mimicry, and poisons. To blend in with their surroundings, some caterpillars have colors similar to their surroundings to "blend in" (this is what is known as "camouflage"). Other caterpillars look like something else, such as a twig, leaf, and even a bird feather (this is known as "mimicry")! Yet another way to avoid predators is spikes filled with poison, a bad taste, and illness such as vomiting (this is known as a "poisonous" caterpillar, which causes harm to predators that eat or touch the caterpillar; once the predator receives the effects of the toxins, it learns to avoid that kind of caterpillar, and any other caterpillar that mimics it).