FRANKLIN, La. — Nutria — the large, semi-aquatic rodents native to South America — have become so invasive in Louisiana that the state wants them shot on sight, offering a $6 bounty for ...

The team scanned the tails of newborn spiny mice up to those that were 6 weeks old. ... The rodents’ skin is especially fragile and easily tears off, particularly on the tail.

Nutria — the large, semi-aquatic rodents native to South America — have become so invasive in Louisiana that the state wants them shot on sight, offering a $6 bounty for their tails.

They show the 45-year-old man from Patterson using a hook to catch a nutria and then severing the rodent’s tail before letting it go. Agents found multiple similar videos, including images where ...