Instant Genius is a bite-sized masterclass in podcast form. In this week's episode, we talk to Dr Helen Scales, a marine biologist, writer and broadcaster.
She's the author of a number of popular science books, including her latest book,What A Shell Can Tell (£16.95, Phaidon Press) teaches us all about seashell diversity.
She tells us about the wonders of seashells and their mollusc inhabitants.
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