Environmental Degradation

photo of a man with a shotgun standing in a small boat with several dead nutria (large rodents).
Courtesy of Quinn Costello

They weigh 20 pounds, have bright orange buck teeth, and look like a cross between a beaver and a rat. The nutria is an invasive rodent that has become a scourge on ecosystems in Louisiana and elsewhere. In the new documentary “Rodents of Unusual Size,” filmmakers track how nutria first arrived in Louisiana and follow the work of hunters who kill the rodents for money and to protect the environment.