By 1973, when the Endangered Species Act became law, only a few wolves remained in northern Michigan and Minnesota.

截至1973年《濒危物种法》颁布之时，只有很少的灰狼存在于北密歇根和明尼苏达州。

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The Minnesota House Agriculture Committee approved a bill March 10 that will allow the hunting and trapping of Minnesota gray wolves as long as the state wolf population exceeds 1, 600 animals.

CNN: Defenders of Wildlife oppose gray wolf bill

The 1978 recovery plan, which was modified in 1992, called for delisting throughout the wolves' eastern range once the Minnesota population stabilized and a second population, outside of Minnesota, of at least 100 wolves became established within 100 miles, or at least 200 wolves if farther than 100 miles.

CNN: Minnesota wolves considered for delisting

"Establishing a hunting and trapping season on wolves in Minnesota is not appropriate or justified at this time" said Defenders President Rodger Schlickeisen.

CNN: Defenders of Wildlife oppose gray wolf bill