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:
-
Rock House in Hocking Hills State Park, Ohio
-
Of balloons and lost pantaloons
-
The Great Glen
-
International Day of Human Space Flight
-
Presidents Day
-
It s fair season
-
Butchart Gardens in Brentwood Bay, British Columbia, Canada
-
Islands of the Salish Sea
-
Squirrel Appreciation Day
-
It s harvest time on World Food Day
-
Fire-damaged forest near Wolf Creek Pass, Colorado
-
World Whale Day
-
Speed skaters in the Gangneung Oval, Pyeongchang, South Korea
-
Celebrating World Wildlife Day
-
Fall Astronomy Week
-
Hiking the High Trestle Trail
-
Happy Halloween!
-
Tom Turkey takes Manhattan
-
Bonsai Rock, Lake Tahoe, Nevada
-
Colle Santa Lucia, Dolomites, Italy
-
A holiday beacon of light
-
Infrared Jupiter, erupting Io
-
Here comes summer
-
An aviation celebration
-
Short-eared owl
-
Neuschwanstein and Hohenschwangau castles, Bavaria, Germany
-
Twas a night just like tonight
-
Cecropia leaf and lobster claw petals in Mexico
-
Here’s looking at you, teachers
-
Big Bend National Park turns 78
Bing Wallpaper Gallery

