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A new large-scale study led by a research team from the Yale Center for Biodiversity and Global Change has found that wildlife responds not only to how humans reshape their habitats, but also to the simple presence of humans — and sometimes in surprising ways. Even small changes in how people move through environments can significantly affect animal behavior and could have implications for wildlife conservation efforts, the study finds. “Our findings provide an important nuance in our understanding of wildlife in a rapidly changing world,” said Walter Jetz, a professor of ecology and evolutionary biology in Yale’s Faculty of Arts and Sciences and director of the Yale Center for Biodiversity and Global Change. “Animals are affected by both direct human presence and by human-caused changes to the physical environment, such as agriculture and urbanization,” Jetz said. “This study is the first to directly assess at scale how both causes, separately and in combination