In the autumn of Moo Deng, California is dealing with an invasive outbreak of rodents that could be considered the anti-Moo Deng: they’re not cute, they’re not in captivity, and they’re dangerous on a number of levels. We’re talking about nutria, sometimes called “swamp rats,” who can measure up to two feet long and weigh up to 20 pounds, and are recognizable for their bright orange front teeth.   And these damned things are trouble. “Nutria have devastating impacts on wetland habitats, agriculture, and water conveyance/flood protection infrastructure,” according to the California Department of Fish and Wildlife (CDFW). “Nutria consume up to 25% of their body weight in above- and below-ground plant material each day. Due to their feeding habits, up to 10 times the amount of plant material consumed is destroyed, causing extensive damage to the native plant community, soil structure, and nearby agricultural crops.”