Science: Welcome, Nutria

The South American nutria, a furry, aquatic, testy little wild animal, is a new U.S. resident. In the current issue of the Journal of Wildlife Management, Frank G. Ashbrook of the U.S. Fish and Wildlife Service announces that nutrias have recently appeared in many parts of the U.S. —from Louisiana to Michigan and Oregon. They seem to be increasing and spreading rapidly.

A native of Argentina and nearby countries, the nutria is a rodent that looks rather like an uncivilized (no dams) beaver. The male weighs about 25 pounds. The female is smaller, and wears her breasts on the side of her...

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