One of the world's largest rodents was imported for fur farming in North America; today it's devastating wetlands and riverbanks across US

Nutria, large rodents native to South America, were imported for fur farming in the late 19th and early 20th centuries.

They now infest forty US states and Canada, devastating wetland vegetation and agricultural crops like rice.

Their burrowing weakens levees and dams, posing risks to infrastructure and public safety.

Eradication efforts include trapping, detection dogs, and bounty programs; California has spent about $5 million per year since rediscovery in 2017.

Nutria are prolific breeders: a single female can produce up to 200 offspring in a year, reaching sexual maturity at four to six months.