What is the difference between Slugs and Snails?

Slugs are small slimy creatures without shells, and they have evolved from snails; however, they are radically different among themselves. Most of the time, they inhabit damp or wet environments, and they feed on dead leaves and fungus.

Slugs have two pairs of tentacles that are responsible for smell and vision. Their slimy structure acts as a deterrent against their predators. The body of the snail is covered with a beautiful shell that has a similar color to its body. Size, color, and shape differ considerably among species. Snails retreat into their shells when they are frightened. Slugs tend to secrete more mucus compared to snails.