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The US Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone.

美国鱼类和野生动物管理局对黄石公园的狼群进行了仔细的监控和管理。

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The US Fish and Wildlife Service said that nearly a billion monarchs have disappeared from overwintering sites since 1990.

美国鱼类和野生动物管理局表示，自1990年来，近十亿只帝王蝶在越冬地点消失了。

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In nineteen-forty, the United States Bureau of Fisheries and the Biological Survey joined to become the Fish and Wildlife Service.

VOA: special.2010.03.14

In nineteen fifty-two, Miss Carson was able to leave her job at the Fish and Wildlife Service and spend her time writing.

VOA: special.2010.03.14

The United States Fish and Wildlife Service led the effort to combine the information into one report.

VOA: special.2009.05.12

The National Marine Fisheries Service and the U.S. Fish and Wildlife Service recently proposed the listing of eight river runs of North Atlantic salmon.

CNN: Gene study seeks 'wildness' of Atlantic salmon - October 25 1999

"The Fish and Wildlife Service is really interested in trout habitat, designing culverts so fish can move to cooler waters, " Prickett said.

WSJ: Towns, ecologists seek climate-friendly culverts

Scientists from the U.S. Fish and Wildlife Service have found that organochlorine chemicals appear to be killing birds and fish near Lake Apopka, Fla.

CNN: Chemicals killing Florida birds, fish