Molluscs

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.

Cephalopods

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

Gastropods

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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