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File:Biberratte - Nutria - coypu - Myocastor coypus - ragondin - castor des marais - Mönchbruch - March 23th 2013 - 01.jpg - Wikimedia Commons
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How 'Rodents Of Unusual Size' Took Over The Swamps — And Hearts – Of Louisiana – Houston Public Media
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File:Biberratte - Nutria - coypu - Myocastor coypus - ragondin - castor des marais - Mönchbruch - March 23th 2013 - 07.jpg - Wikimedia Commons
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