A World of Diversity Caterpillars vary tremendously in color, pattern, size, form, and even behavior. Their bodies range from entirely smooth to adorned in hairs, spines, or fleshy protuberances. Some caterpillars are large and plump, while others are long and thin or even slug-like in appearance. No matter what size or shape, caterpillars are highly desirable prey to birds, lizards, and other predators, and they must do their best to avoid being eaten. To do so, caterpillars employ a range of creative defenses. Color and pattern are some of the most effective measures in their arsenal. Generally, most larvae are true masters of concealment, blending almost seamlessly into the background of vegetation on which they feed or hiding within constructed shelters on their host. Others boldly advertise their presence with bright colors and distinctive patterns to warn predators that they are toxic.

Still others resemble bird droppings, have realistic-looking false eyespots, regurgitate fluid, or drop to the ground when disturbed to help confuse or startle attackers. Whether eye-catching, highly camouflaged, or even creepy, caterpillars are amazingly diverse and worth a closer look. Caterpillars and Native Plants Nearly all caterpillars are herbivores, and they collectively represent one of the most diverse groups of plant-feeding animals on Earth. Most caterpillars are specialists and have adapted to depend on a limited number of native plant species as hosts. In fact, native plants support many more caterpillars than introduced, non-native plants. While there are, of course, exceptions, growing native plants is a great way to help attract and provide needed resources for these wonderful creatures.