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Insight Into the World’s “Singing Sands” 
While Marco Polo attributed the eerie sounds of “singing sands” to spirits, modern science has a little more empirical theory. The Smithsonian has an intriguing article, replete with a video that shows you how to tune your dune:  http://www.smithsonianmag.com/smart-news/why-sand-dunes-deserts-around-world-sing-1-180957071/?no-ist

“Best of the Best” Nature Photos 
The Smithsonian has a sample gallery of stunning nature photos culled from an exhibit at the institution. Puffins, leopards and more can be found at: http://www.smithsonianmag.com/smithsonian-institution/smithsonian-museums-best-best-nature-photography-180957134/