"TRAVERSE CITY, Mich. (AP) - The U.S. Fish and Wildlife Service took a step Thursday toward placing the coaster brook trout, which once thrived in the upper Great Lakes, on the endangered species list.

A petition filed by two groups in 2006 made a strong enough case to justify a formal review, the service said in a Federal Register notice. The Sierra Club and the Huron Mountain Club sued the agency in December for failing to act earlier. Officials blamed the delay on budget restraints."

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