When he shone white light into an empty shell, the structure scattered only blue-green wavelengths (the same ones given off by snail’s shining cells); all the other colours passed straight through.

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Blue sea dragon, sea swallow, blue ocean slug ... But it turns out that it isn’t actually live mantle tissue that covers the shell. The flamingo tongue snail only retracts these mantle flaps ...

The dish: This dish, served in two parts, highlights sea snails from the Faroe Islands. First, the snails are massaged for about 10 minutes with a little bit of salt to get rid of the “slime ...

ROTT: Black abalone are federally endangered large sea snails treasured for their meat and their smooth, blue-black shells by people here for millennia. COX-AMMANN: In here is a great view, but ...

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A new analysis shows that three scraps of fabric found in Israeli caves had been dyed indigo, purple and crimson — the hues of Roman royalty — using sea snail ink some 2,000 years ago.