Worms and caterpillars are not the only worm-like creatures that have differences. Some people are quick to confuse millipedes and centipedes with worms. The obvious differences between these creatures is the fast movement of these leggy creatures and the thousands of tiny legs attached to the body.

To help answer the question, “what kind of worm is this?” an entire branch of zoology called “Entomology” was established to classify the thousands of worm species that have been discovered on planet earth.