The molluscs or
Jonathan Bird/ORG For educational use only. There are over 50,000 known
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biology : any one of a large group of animals (such as snails and clams) that have a soft body without a backbone and that usually live in a shell. Source: ...
Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). It includes such ...