ナショナルジオグラフィックのインスタグラム(natgeo) - 10月27日 23時42分

Photo by George Steinmetz @geosteinmetz / Youcan judge the age of a desert by its color, as it takes thousands of years for the iron minerals of each sand grain to oxidize into a ripe orange. The dunes of the Namib are among the oldest on Earth and stabilized by colonies of grass that are nurtured by the coastal fog and its dew. These are fragile ecosystems, with living cryptobiotic soils. They can be scarred by careless car tracks, but are now protected by a strict legal system that preserves them in perpetuity. To explore more of our world from above, follow @geosteinmetz.

[BIHAKUEN]UVシールド(UVShield)

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