Are glowworms really worms? Actually, glowworms can be many different kinds of insects, and they live all over the world. While people are 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 learn where glowworms live, what they look like, and why they glow. Amazing and vivid photographs of numerous glowworms, as well as a detailed glossary, help readers navigate the informative text that supports life science curriculum topics.