The aquarium at the California Academy of Sciences has 18 African penguins (shown here) in its exhibit. Read more about the penguins.... more 
The aquarium at the California Academy of Sciences has 18 African penguins (shown here) in its exhibit. Read more about the penguins. less 
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LiveScience.com | Photo By California Academy of Sciences
Wed, Aug 1, 2012 8:10 PM EDT