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Desapareciendo ranas - Kerry M. Kriger

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Ranas y anfibios (en general) están en peligro - en todo el mundo, casi un tercio de las especies de anfibios del mundo están al borde de la extinción. Y, sin embargo, ranas contribuyen a nuestro bienestar en muchos aspectos importantes. Kerry Kriger M. describe por qué las ranas están en problemas y cómo puede ayudar a salvarlos. 

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