Today"s photo brings us to the banks of Caño Cristales, the "liquid rainbow" that cuts a prismatic path through the heart of Colombia. From June through November, when the clear water is low, the abundant underwater plants that cover the riverbed show off their red, yellow, green, and blue hues. The star of the show—especially in this photo—is Macarenia clavigera, a riverweed that ranges from bright red to deep crimson or purple depending on its intake of sun rays. In August and September, when the florid flora is at its peak, the river"s a coveted nature excursion: Because the ecosystem is so fragile, visits are limited to guided tours.
Go with the rainbow flow
Today in History
More Desktop Wallpapers:
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The Cordillera de la Sal in the Cordillera Domeyko Range of Chile
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It’s showtime for a precious crop
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International Jazz Day
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Corjuem Fort in Goa, India
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Wandering Watkins Glen
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Moving as one
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We have liftoff!
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Global commerce in motion
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It s time to fall back
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Bonaventure Cemetery, Savannah, Georgia
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Arc de Triomphe du Carrousel and the Louvre Pyramid
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Arbor Day
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Celebrating Norwegian Constitution Day
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Welcome to ‘Hollywood North’
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Bridge to infinity
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Tesla, the visionary
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Fire-damaged forest near Wolf Creek Pass, Colorado
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Let us introduce you…
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Loud waters
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Take the plunge into 2021
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Constitution Day and Citizenship Day
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In the path of the pronghorn
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New Zealand s loneliest mountain
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Great horned owl fledglings
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Jupiter and the Galilean moons
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Looking back at Yellowstone, 30 years after the fires
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Hidden beauty in Thailand
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Crested caracaras
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The mighty, mighty mushroom
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A predator at risk