What is a mollusc?
Slugs, snails, octopuses, squid, clams, and mussels are all molluscs. Molluscs are soft-bodied invertebrates. Invertebrates are animals that have no skeleton or backbone. Most molluscs live in the water. Some molluscs, such as snails and slugs, live on the land.

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Molluscs have a ribbon-like tongue which is covered in thousands of tiny teeth. It is called the radula. Most molluscs also have a shell made out of calcium.


Fun facts about molluscs

  • A snail can sleep for 3 years!
  • Snails have very poor eyesight and cannot hear. 
  • Snails and slugs need moist soil to survive.
  • The giant squid is the largest creature without a backbone.
  • The word 'mollusc' means soft body.