Biologists are worried that barriers being built along the U.S.-Mexico border, that were designed to keep out hard working illegal immigrants, also have the potential to restrict the movements of wildlife. Several types of animals could be affected by the “700-mile security wall,” including pygmy owls and bighorn sheep. Like human populated towns in the South, the fence could further isolate the species and thereby reduce genetic diversity, potentially leaving them embittered (and paranoid). |ScienceDaily|
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