The large rodent swimming in these ditches with orange front teeth is a nutria, a South American animal that arrived on the Gulf Coast for fur farming in the 1930s and got out — a hurricane and a good many deliberate releases finished the job. They are semiaquatic, breed several times a year, and eat the roots of marsh plants rather than the tops, which kills the plant outright and turns marsh into open water. On a coast already losing wetland to subsidence and sea level, that is a serious multiplier.
Getting there
29.6000, -94.9000
Locations are approximate and may be inaccurate, on private land, or otherwise inaccessible. Check before you travel.