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Rumoroso, Cantabria, Spain
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Lumbreras, La Rioja, Spain
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Mahide, Castille and Leon, Spain
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Muelas del Pan, Castille and Leon, Spain
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Villoslada de Cameros, La Rioja, Spain
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Villoslada de Cameros, La Rioja, Spain
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Villoslada de Cameros, La Rioja, Spain
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Villoslada de Cameros, La Rioja, Spain
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Mahide, Castille and Leon, Spain
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Mahide, Castille and Leon, Spain
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Villoslada de Cameros, La Rioja, Spain
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This giant sun animalcules, Actinosphaerium eichhorni, had a diameter of 300 m! It was feasting on Stentors. The brown in the middle is a stentor just being digested.