Title Page and Background Image:
Robert Marien/Corbis

Online Publishing Director:
Emily Allen

Smithsonian.com Editorial Staff:
Cate Lineberry, Web Editor
Eric Jaffe, Associate Web Editor

Smithsonian.com Production Staff:
Kelly Durkin, Senior Web Producer
Cheryl Carlin, Junior Web Producer

Smithsonian magazine Contributors:
Alison McLean
Laura Helmuth
Bruce Hathaway
Sarah Zielinski
Jess Blumberg

Special thanks to:
Nancy Knowlton, Sant Chair for Marine Science, National Museum of Natural History
Elizabeth Duggal, Associate Director for External Affairs and Public Programs, National Museum of Natural History
Carole Baldwin, Department of Vertebrate Zoology, Division of Fishes, National Museum of Natural History
Elizabeth Musteen, Project Manager, National Museum of Natural History

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Second Thought