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COYPU POPULATION
In 1981, Britain wanted to eradicate the invasive coypus which escaped from fur farms and grew to roughly 200,000 in population and damaged crops and wetlands; after years of trapping Britain made them disappear from the countryBritain once had roughly 200,000 coypus after the rodents escaped from fur farms and spread across East Anglia, damaging crops and wetlands...
During World War II, Japan imported 150 South American nutria for military fur; after mass escapes and releases, their descendants spread across at least 19 prefectures and dug through rice fields and reservoir banksDuring wartime, Japan imported nutria for their lucrative fur farming, which inadvertently gave rise to large invasive populations. Origina...