DNA Study Reveals Nutria Rodents Were Reintroduced to California by Humans
California had believed nutria, large semi-aquatic rodents, were fully eradicated from the state, but the species has since reappeared in the Central Valley. A new genetic study suggests the animals were not a natural resurgence but were deliberately or accidentally reintroduced by humans. Nutria are considered highly destructive, as their feeding and burrowing behaviors damage wetlands and compromise flood control infrastructure. The findings underline that eradication efforts alone are insufficient and that stronger prevention measures are equally essential.
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