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File:Polar Bear - Lincoln Park Zoo - Chicago Illinois.jpg - Wikipedia
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An elephant escape, Bushman, 5,000 hissing cockroaches and 150 years of animal stories inside the Lincoln Park Zoo – Chicago Tribune
File:Lincoln Park Zoo's Visitor Center.jpg - Wikipedia
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File:American Bison (Buffalo). Lincoln Park Zoo. 1900. (3404663689).jpg - Wikimedia Commons
Lincoln Park Zoo
Pin by Shebby Bear on forever Lincoln park zoo, Lincoln park zoo chicago, Zoo lights