HOLD for Seth Bornenstein story- -Scientists prepare Martha, right, an extinct passenger pigeon, once the most plentiful bird on the planet, who went extinct in September 1914 when Martha died in ... more 
HOLD for Seth Bornenstein story- -Scientists prepare Martha, right, an extinct passenger pigeon, once the most plentiful bird on the planet, who went extinct in September 1914 when Martha died in public at the Cincinnati zoo, at the Smithsonian's Natural history Museum in Washington, Monday, June 16, 2014. Martha was previously on display with George, left, and had to be separated from him in preparation for her new display. (AP Photo/Susan Walsh) less 
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Associated Press | Photo By Susan Walsh
Tue, Jul 1, 2014 2:09 PM EDT