Molluscs are invertebrates, which means they are animals that do not have a backbone. They come in all shapes and sizes, and some of them grow external shells to protect their soft bodies. 

Molluscs include clams, snails, slugs, octopus, squid, nudibranchs and oysters.


This is a group of marine animals that includes octopuses, squids, cuttlefishes, nautiluses and an extinct group known as ammonites. 


This group of animals includes slugs and snails. These animals can be found on living on land, and in marine and freshwater environments.

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