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Maëlle, 7, wants to know why some shells are smooth, while others are corrugated. It turns out that while corrugated shells are strong, smooth shells can move fast.
Molluscs - Noticias, Investigaciones y Análisis - The Conversation
Marine biology – Berita, Riset, dan Analisis – The Conversation
Curious Kids: why are some shells smooth and some shells corrugated?
Scallops – News, Research and Analysis – The Conversation – page 1
The Conversation
Marine biology – News, Research and Analysis – The Conversation
2,709,778 Shell Images, Stock Photos, 3D objects, & Vectors