Mother of Pearl

Nacre ( NAY-kər, also NAK-rə), also known as mother-of-pearl, is an organic–inorganic composite material produced by some molluscs as an inner shell layer. It is also the material of which pearls are composed. It is strong, resilient, and iridescent.

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Se denomina oruga a la larva de los insectos del orden Lepidoptera (incluye a las mariposas diurnas y nocturnas). Las orugas son típicamente blandas y cilíndricas. Algunas poseen vistosos colores, que advierten de su toxicidad o desagradable sabor.