human
How can I tell the difference between a slug and a snail?
assistant
Slugs are slimy, soft-bodied creatures that move by crawling. Snails are hard-shelled animals with two shells, one for the body and another for the head. Slugs have no eyes or antennae, but they do have tentacles. Snails have eyes and antennae, and their bodies are covered in tiny bumps called granules.