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Patterns in Nature: Mysterious Earth

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Photo: Shoreline of Lake Retba, Senegal
Photo: Shoreline of Lake Retba, SenegalPhoto: Biplane above Monomoy Island, MassachusettsPhoto: Sand dunes in the Rub al Khali desertPhoto: Fronds drying in KenyaPhoto: Cavelike homes in rock formations in TurkeyPhoto: Aerial view of grassless patches in the Namib DesertPhoto: Bacteria in a New Zealand thermal poolPhoto: Sunflower floretsPhoto: Lichens on a gravestone in Lake Champlain, New YorkPhoto: Banskia flower
ENLARGEWALLPAPER
Salt piles line the shoreline of Lake Retba, Senegal. The high salinity content of the lake provides a livelihood for salt collectors.
Photograph by Robert Haas

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