Each day we select a dozen photos submitted by you to highlight on National Geographic’s website — several of which are also included in each month’s National Geographic magazine — and here we present a selection of the best from April 2011.
Rate your favorites or upload your own photo and they could be featured on National Geographic’s website, in National Geographic magazine or appear in future galleries here on Facebook. Visit Your Shot now: http://on.natgeo.com/yourshot
photocoustic 
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