Taking a trick from birds and butterflies, a mollusk shines blue using intricate structures that allow selective reflection of light. But unlike other animals, the blue-rayed limpet, a snail that ...

A marine snail has a shell that is remarkably well adapted for diffusing the light that it emits to ward off predators. Stimulating Hinea brasiliana snails (pictured), by tapping them or placing them ...

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