Glowworms are actually many different kinds of insects, and they live all over the world. While you're probably most familiar with the glowing larvae and female adults we call fireflies, there are many other kinds of glowworms. Inside this informative and exciting guide, readers will learn where glowworms live, what they look like, and why they glow. Amazing and vivid photographs of numerous glowworms, as well as a graphic organizer, help readers comprehend the scientific text.