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Ozark Hellbender at St. Louis Zoo

October 25, 2011 | 8:08 p.m. CDT
This 8-year-old male Ozark Hellbender was photographed at the St. Louis Zoo on Oct. 8. The number of hellbenders in the Ozark Mountains has decreased by approximately 70 percent in the last 10 years due to habitat changes, pollution, disease and silt in rivers.

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