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The iconic species of the Galápagos, in photos

A new book from Penn’s Michael Weisberg and naturalist Walter Perez showcases the fauna eating, fighting, mating, and interacting with humans.
Fish near Santiago Island, Galápagos (©Walter Perez)
El Niño of 2015-2016, which warmed the surface waters of the Pacific Ocean, was then the strongest such event in almost two decades, according to NASA. But when El Niño ended, the cold waters around the Galápagos returned, bringing with them loads of nutrients, fish populations like this one near Santiago Island exploded. (©Walter Perez)

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