ILLUSTRATION CREDITS

Here, here, here, here, here: Courtesy of Fernando Estel, based on the work of Joselarucca, under Creative Commons 3.0

Here: Courtesy of Shutterstock

Here: Courtesy of Blythe Brown

Here, here: Courtesy of Dan Brown

Here: Courtesy of Shutterstock

Here: Illustration by Darwin Bedford

Here: Courtesy of Dan Brown

Here: Courtesy of Dan Brown

Here: Illustration by David Croy

Here: Illustration by the Pond Science Institute

Here: Illustration by Mapping Specialists, Ltd.

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