Nina Ruelle tells the story of Tyrian Purple, a dye created from the marine snail known as Bolinus brandaris. For more information, please see the article at the New York Times where we originally presented the piece - nytimes.com/2013/10/09/science/the-color-of-royalty-bestowed-by-science-and-snails.html .

This episode features the song "humm ok" by Gablé - freemusicarchive.org/music/Gabl/le_sac_de_l_enfer_1/01_humm_ok

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