20-pound rodents with big orange teeth, rat-like tails, and no necks are wreaking havoc in the US and landing on 'most unwanted' lists

• A large invasive species that resembles a beaver is damaging ecosystems in over a dozen US states.
• Nutria, native to South America, were introduced to the US in the late 1800s for their fur.
• The aquatic rodents has since spread, destroying wetlands and threatening flood infrastructure.

A large aquatic rodent with bright orange teeth is causing environmental destruction in the US as wildlife officials struggle to keep the species from proliferating further.