Snails are fascinating creatures that move in a unique way. They have a muscular foot that helps them move forward, backward, and sideways. Let's delve into how snails move.

Muscular foot
The foot is a muscular organ that extends from the front of the snail's body. It is covered in a slimy mucus that helps the snail glide over surfaces. The foot is also used to grip onto surfaces and to move the snail's body.

Undulating motion
Snails move by contracting and relaxing the muscles in their foot. This causes a wave-like motion that propels the snail forward. The undulating motion is slow and steady, and the snail can move in any direction.

Slimy mucus
The slimy mucus that covers the foot helps the snail move over surfaces without slipping. The mucus also helps to protect the snail from rough surfaces and predators.

Suction
Snails are able to grip onto surfaces using suction. They create a vacuum by contracting their muscles and flattening their foot against the surface. The suction allows the snail to climb vertical surfaces and even upside down.

Retracting foot
When a snail is threatened, it can retract its foot into its shell for protection. The foot is pulled in using strong muscles, and the shell is sealed shut with a slimy mucus. This protects the snail from predators and harsh environments.

In conclusion, snails move by using their muscular foot to create an undulating motion. They use suction to grip onto surfaces and a slimy mucus to protect themselves. When threatened, they can retract their foot into their shell for protection.

Snail possesses wavy movement with muscular contraction. It also secrets sticky substance called mucus which helps to reduce grip between the snail and the ground so that they can move easily. It has shell on its back which is hard but not made of bone and is not helpful in locomotion.