Associated Press
Ethan Schipper, 5, of Vienna, Va., records his voice and mimics an elephant’s sound and looks at a spectrogram in the Elephant Community Center at the Smithsonian’s National Zoo in Washington, Thursday, March 21, 2013. The Smithsonian's National Zoo in Washington is opening an expansive new community center for elephants and hopes to begin expanding its herd. The public opening of "Elephant Trails" on Saturday marks a major expansion for the Asian elephant exhibit. The $56 million overhaul was completed over the past seven years.  (AP Photo/Manuel Balce Ceneta)

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