Sunday, December 22, 2013

National Geographic Photo of the Day: December 19th of 2013

Aflutter Along the Iguazu

December 19, 2013
 Picture of butterflies in flight along the Iguazu River
December 19, 2013

Aflutter Along the Iguazu

Photograph by Daniel Pinheiro
This Month in Photo of the Day: National Geographic Photo Contest Images
Large gatherings of butterflies are common alongside the Iguazu River on the Brazil-Argentina border. When the river flow gets lower, the rocky riverbanks become exposed, retaining water in small ponds very rich in salts. This attracts butterflies of several species, mainly of the Pieridae family. Butterflies absorb and concentrate the salts in their bodies, pumping out the excess water.
(This photo and caption were submitted to the 2013 National Geographic Photo Contest.)

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