Close-up of a bivalve shell

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X-ray of Seashell

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Blue Mussel Shell

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Nautilus Shell Cross-section — Brown, Serene

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Nautilus Shell Cross-section — Blue, Dramatic

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Nautilus Shell Cross-section — Brown, Dramatic

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Nautilus Shell Cross-section — Green

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Nautilus Shell Cross-section — Blue

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Deep-sea hydrothermal vent life

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Spiny Puffer Fish in Shell

900 × 650

Nautilus shell with chamber

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Nautilus Shell Cross-section — Brown, Calm

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