Daily Climate: As fans of "Duck Dynasty" can attest, hunting for nutria big, water-loving rodents with bright orange front teeth is hugely popular in Louisiana. This might not be exclusive to the bayou for long. As winters warm, nutria could migrate across the country, according to new research.
Researchers at the U.S. Geological Survey found that during a recent string of mild winters, nutria populations expanded northward in the United States. Left uncontrolled, that trend could continue over the next...