Oregon Zoo elephant curator Bob Lee strokes the bottom of Lily's trunk while the zoo's youngest Asian elephant plays in a newly unveiled portion of the Elephant Lands exhibit on Wednesday, March 5, 2014, in Portland, Ore. The special sand that covers the new outdoor Encounter Habitat, on the south end of what will be Elephant Lands, was found after a year of testing to find the right mix of cushion and porosity. (AP Photo/The Columbian, Stover E. Harger III)
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