This undated photo provided by the Zoological Society of San Diego shows a Speke's gazelle. They are among the animals being considered for a new facility planned by the San Diego Zoo

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This undated photo provided by the Zoological Society of San Diego shows a Speke's gazelle. They are among the animals being considered for a new facility planned by the San Diego Zoo Global Wildlife Conservancy and New Orleans' Audubon Nature Institute in New Orleans. Of 28 species under consideration, about half are endangered, vulnerable or near threatened. (AP Photo/Zoological Society of San Diego) less 

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Associated Press
Tue, Jan 15, 2013 8:24 PM EST