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Unidentified worm species creeping just under the surface of the sand dunes in Copiapo, Atacama desert.

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Title: Unidentified worm species creeping just under the surface of the sand dunes in Copiapo, Atacama desert.

Unidentified worm species creeping just under the surface of the sand dunes in Copiapo, Atacama desert.

Credit: Gerhard Hüdepohl / atacamaphoto