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January 26, 2016; 113 (4)

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Cover image: Pictured is a Columbian mammoth, which existed in North America until 11,000 years ago. The Columbian mammoth is one of over 100 large herbivores and carnivores that went extinct as modern humans spread around the world. Large animals are particularly important in shaping the structure and function of ecosystems. Yadvinder Malhi et al. introduce the Megafauna and Ecosystem Function: From the Pleistocene to the Anthropocene Special Feature, appearing in this issue, which explores the environmental consequences of past and contemporary megafaunal decline as well as the roles played by megafauna in the restoration of ecosystems. See the Perspective by Malhi et al. on pages 838–846. Image courtesy of Carl Buell, with the original on display at The Mammoth Site, Hot Springs, South Dakota.

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