Invasive aquatic rodent known as nutria spotted in Sacramento County
The invasive rodents known as nutria, spurred by California’s wet winter, have been spotted on Sherman Island in Sacramento County. California Fish and Wildlife was first on alert about these rodents when they were spotted in the Central Valley in 2017. Now, the critters some people call swamp rats are spreading to other counties. … The invasive South American aquatic rodent is distinguishable by its orange teeth, white whiskers and it’s ability to grow up to 40 pounds. … The critters are known to burrow in levees, making flooding to agriculture and communities the biggest fear.