Both snails and slugs are land gastropods. The only difference between the two is that slugs lack visible shells, while snails do. It is possible for slugs to have shells, but they are not as visible as snail shells.
Slugs and snails thrive in various environments like meadows, forests, gardens, and even backyards. Birds and hedgehogs often see them as food, but many view them as pests that damage plants and crops.
Appearance
Snails have a distinct spiral shell, while slugs lack a visible shell. Snails are usually around 10 inches, making them appear larger due to their shells. Slugs, despite having no shell, can grow up to 15 inches.
Habitat
Snails have it easy as they carry their homes. Their hard, protective shells let them retreat from predators and rest in bad weather like rain or snow.
Slugs lack a protective shell, exposing them to colder temperatures and harsher weather. They’re more likely to be eaten by larger animals. However, they can easily shelter in narrow openings in logs, leaves, and other ground debris.
Speed
Slugs are faster than snails since they don’t carry shells. While different, both land snails and slugs move similarly. They produce mucus to glide and use their antennas to guide them.
