Seashells expert guide: what are they, where do they come from

Every shell was once part of a living sea creature. But what are they? How are they formed? And what animals use them? Our expert guide has the answers

Philip's Guide to Seashells of the World

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How are seashells created? Or any other shell, such as a snail's or a turtle's?, Sea Shells

Seashells expert guide: what are they, where do they come from

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