20 of 20: A Sun Bear is fed an orange by a zoo keeper, at the Henry Doorly Zoo in Omaha, Neb., Friday, June 4, 2010. Omaha's Henry Doorly Zoo has released a $175 million master plan that will add a parking lot where Rosenblatt Stadium now sits and an African grasslands exhibit on the east side of the zoo. ( (AP Photo/Nati Harnik))

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